I. Kitagawa

发表

The Structure of Caloploicin, a New Lichen Trichloro-depsidone

I. Yosioka, K. Hino, M. Fujio, 1973 .

Malonylginsenoside Rb1 potentiates nerve growth factor (NGF)-induced neurite outgrowth of cultured chick embryonic dorsal root ganglia.

N. Nishiyama, H. Saito, I. Kitagawa, 1994, Biological & pharmaceutical bulletin.

[Variation of chemical constituents in processed licorice roots: quantitative determination of saponin and flavonoid constituents in bark removed and roasted licorice roots].

H. Kuwajima, I. Kitagawa, M. Kobayashi, 1999, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

Saponin and sapogenol. XLVIII. On the constituents of the roots of Glycyrrhiza uralensis Fischer from northeastern China. (2). Licorice-saponins D3, E2, F3, G2, H2, J2, and K2.

J. Zhou, M. Sakagami, I. Kitagawa, 1993, Chemical & pharmaceutical bulletin.

Saponin and sapogenol. XLVII. On the constituents of the roots of Glycyrrhiza uralensis Fischer from northeastern China. (1). Licorice-saponins A3, B2, and C2.

J. Zhou, I. Kitagawa, M. Yoshikawa, 1993, Chemical & pharmaceutical bulletin.

Marine Natural Products. XII. On the Chemical Constituents of the Okinawan Marine Sponge Hymeniacidon aldis

Y. Kyōgoku, Motomasa Kobayashi, I. Kitagawa, 1983 .

Cleavage of Steroidal Digitonides in Dimethyl Sulfoxide

E. Mosettig, I. Kitagawa, C. Issidorides, 1962 .

Marine Natural Products. XXX. Two New 3-Keto-4-methylene Steroids, Theonellasterone and Conicasterone, and a Diels-Alder Type Dimeric Steroid Bistheonellasterone, from the Okinawan Marine Sponge Theonella swinhoei

Motomasa Kobayashi, K. Kawazoe, I. Kitagawa, 1992 .

Molecular conformation of swinholide A, a potent cytotoxic dimeric macrolide from the Okinawan marine sponge Theonella swinhoei: x-ray crystal structure of its diketone derivative

Motomasa Kobayashi, T. Ishida, I. Kitagawa, 1991 .

Absolute stereostructure of swinholide A, a potent cytotoxic macrolide from the Okinawan marine sponge Theonella swinhoei

Motomasa Kobayashi, T. Ishida, J. Tanaka, 1990 .

Structure of swinholide A, a potent cytotoxic macrolide from the Okinawan marine sponge

Motomasa Kobayashi, I. Kitagawa, T. Katori, 1989 .

Soil bacterial hydrolysis leading to genuine aglycone—VIII

I. Yosioka, I. Kitagawa, K. Imai, 1974 .

SOIL BACTERIAL HYDROLYSIS LEADING TO GENUINE AGLYCONE PART 9, A STEROIDAL PROSAPOGENOL OF NEW TYPE FROM EPIGEOUS PART OF METANARTHECIUM LUTEO‐VIRIDE MAXIM. AND CHARACTERIZATION OF 3‐EPI‐METAGENIN

I. Yosioka, I. Kitagawa, K. Imai, 1974 .

Plant-glycoside modulation of cell surface related to control of differentiation in cultured B16 melanoma cells.

I. Kitagawa, Z. Zong, K. Fujikawa-yamamoto, 1987, Cancer research.

Metallothionein-independent hepatoprotection by zinc and sakuraso-saponin.

N. Itoh, I. Kitagawa, N. Muto, 1997, Toxicology letters.

Picomole scale stereochemical analysis of sphingosines and dihydrosphingosines.

A. Bielawska, Y. Hannun, K. Nakanishi, 1996, Bioorganic & medicinal chemistry.

A study of the calcium complex of a glucosylceramide, soya-cerebroside II.

I. Kitagawa, S. Katayama, M. Kurosu, 2007, Chemical & pharmaceutical bulletin.

Indonesian Medicinal Plants. XVIII.Kompasinol A, a New Stibeno-Phenylpropanoid from the Bark of Koompassia malaccensis (Fabaceae)

Motomasa Kobayashi, T. Mahmud, I. Kitagawa, 1996 .

Bruceine B, A Potent Inhibitor of Leukocyte-Endothelial Cell Adhesion

S. Nakagawa, T. Mayumi, Motomasa Kobayashi, 1997, Inflammation.

Indonesian medicinal plants. II. Chemical structures of Pongapinones A and B, two new phenylpropanoids from the bark of Pongamia pinnata (Papilionaceae).

K. Tsuchiya, I. Kitagawa, K. Hori, 1992, Chemical & pharmaceutical bulletin.

Ganglioside GM3 Derivatives with Truncated Ceramide Moiety: Facial Synthesis and Inhibitory Activity against KB Cell Growth

I. Kitagawa, M. Kurosu, 2006 .

Control of phenotypic expression of cultured B16 melanoma cells by plant glycosides.

I. Kitagawa, H. Kohno, T. Matsuda, 1985, Cancer research.

Chemical transformation of terpenoids. V: Acidic conversions of 10-hydroxygeraniol and 10-hydroxynerol derivatives leading to cyclic monoterpenoids

I. Kitagawa, S. Tsujii, H. Shibuya, 1983 .

Chemical Transformation of Terpenoids. VI. Syntheses of Chiral Segments, Key Building-Blocks for the Left Half of Taxane-Type Diterpenoids

I. Kitagawa, H. Fujioka, Yoshio Yamamoto, 1984 .

Successive methyl migrations occurring in the acid treatment of 1-epoxyethyl-1,2,2-trimethyl-cyclopentane derivative

T. Hakoshima, K. Kitamura, I. Kitagawa, 1980 .

Marine natural products. XXXIV. Trisindoline, a new antibiotic indole trimer, produced by a bacterium of Vibrio sp. separated from the marine sponge Hyrtios altum.

S. Aoki, I. Kitagawa, M. Kurosu, 1994, Chemical & pharmaceutical bulletin.

Absolute configurations of rehmaionosides A, B, and C and rehmapicroside three new ionone glucosides and a new monoterpene glucoside from rehmanniae radix

I. Kitagawa, M. Yoshikawa, T. Taniyama, 1986 .

The absolute stereostructures of the polyacetylenic constituents of Ginseng Radix Rubra

Motomasa Kobayashi, T. Mahmud, N. Murakami, 1997 .

THE ABSOLUTE STEREOSTRUCTURE OF PANAXYTRIOL, A BIOLOGICALLY ACTIVE DIACETYLENIC ACETOGENIN, FROM GINSENG RADIX RUBRA

Motomasa Kobayashi, T. Mahmud, I. Kitagawa, 1995 .

On the c-16 hydroxyl configuration of protoprimulagenin a andprimulagenin a

I. Yosioka, I. Kitagawa, M. Yoshikawa, 1974 .

Saponin and sapogenol. XIV. Antifungal glycosides from the sea cucumber Stichopus japonicus selenka. (1). Structure of stichopogenin A4, the genuine aglycone of holotoxin A.

I. Yosioka, I. Kitagawa, T. Sugawara, 1976, Chemical & pharmaceutical bulletin.

Stereoselective conversion of D-glucuronolactone into pseudo-sugar: Syntheses of pseudo -α-D-glucopyranose, pseudo-β-D-glucopyranose, and validamine

N. Murakami, I. Kitagawa, M. Yoshikawa, 1994 .

Bioactive saponins and glycosides. III. Horse chestnut. (1): The structures, inhibitory effects on ethanol absorption, and hypoglycemic activity of escins Ia, Ib, IIa, IIb, and IIIa from the seeds of Aesculus hippocastanum L.

N. Murakami, I. Kitagawa, M. Yoshikawa, 1996, Chemical and pharmaceutical bulletin.

Bioactive Saponins and Glycosides. Part 3. Horse Chestnut. The Structures, Inhibitory Effects on Ethanol Absorption, and Hypoglycemic Activity of Escins Ia, Ib, IIa, IIb, and IIIa from the Seeds of Aesculus hippocastanum L.

N. Murakami, I. Kitagawa, M. Yoshikawa, 1997 .

Chemical Transformation of Uronic Acids leading to Aminocyclitols. IV. Synthesis of Hexaacetyl-streptamine from N-Acetyl-D-glucosamine by Means of Electrolytic Decarboxylation

I. Kitagawa, M. Yoshikawa, T. Kamigauchi, 1981 .

Syntheses of pseudo-.ALPHA.-D-glucopyranose and pseudo-.BETA.-L-idopyranose, two optically active pseudo-hexopyranoses, from D-glucose by using stereoselective reductive deacetoxylation with sodium borohydride and cyclitol formation from nitrofuranose as key reactions.

I. Kitagawa, M. Yoshikawa, B. Cha, 1988 .

Ionophoretic activities of oligopeptide lactones and resin-glycosides in human erythrocytes.

I. Kitagawa, H. Akedo, K. Shinkai, 1989, Chemical & pharmaceutical bulletin.

Structures of merremosides b and d, new antiserotonic resin-glycosides from the tuber of Merremia mammosa, an Indonesian folk medicine.

H. Wiriadinata, I. Kitagawa, M. Yoshikawa, 1988, Chemical & pharmaceutical bulletin.

Chemical investigation of ceylonese plants. Part VII. Extractives of Calophyllum thwaitesii Planch and Triana and Calophyllum walkeri Wight (Guttiferae)

I. Kitagawa, M. Sultanbawa, M. Dahanayake, 1974 .

Marine Natural Products. XXXVII. Aragusteroketals A and C, Tow Novel Cytotoxic Steroids from a Marine Sponge of Xestospongia sp.

S. Aoki, Motomasa Kobayashi, I. Kitagawa, 1996 .

Molecular modeling of 5-desacetylaltohyrtin A, a spongean cytotoxic macrolide

S. Aoki, Motomasa Kobayashi, Yuji Kobayashi, 2001 .

Altohyrtin A, a potent anti-tumor macrolide from the Okinawan marine sponge Hyrtios altum

S. Aoki, Motomasa Kobayashi, Takuma Sasaki, 1993 .

Marine Natural Products. Part 34. Trisindoline, a New Antibiotic Indole Trimer, Produced by a Bacterium of Vibrio sp. Separated from the Marine Sponge Hyrtios altum.

S. Aoki, Motomasa Kobayashi, I. Kitagawa, 1995 .

Indonesian Medicinal Plants. XXII. Chemical Structures of Two New Isopimarane-Type Diterpenes, Orthosiphonones A and B, and a New Benzochromene, Orthochromene A from the Leaves of Orthosiphon aristatus (Lamiaceae)

I. Kitagawa, H. Shibuya, K. Ohashi, 1999 .

Indole Alkaloids from the Leaves of Alstonia villosa in Sunbawa (Alstonia 6)

I. Kitagawa, F. Abe, T. Yamauchi, 1998 .

Araguspongines B, C, D, E, F, G, H, and J, new vasodilative bis-1-oxaquinolizidine alkaloids from an okinawan marine sponge, Xestospongia sp.

K. Kawazoe, I. Kitagawa, M. Kobayashi, 1989, Chemical & pharmaceutical bulletin.

Aragupetrosine a, a new vasodilative macrocyclic quinolizidine alkaloid from an Okinawan marine sponge sp

Motomasa Kobayashi, K. Kawazoe, I. Kitagawa, 1989 .

On the Constituents of Seeds of Horsfieldia iryaghedhi WARB. I

I. Yosioka, I. Kitagawa, T. Nakanishi, 1972 .

Synthesis of (‐)‐Aristeromycin from D‐Glucose.

I. Kitagawa, M. Yoshikawa, B. Cha, 1989 .

CHEMICAL TRANSFORMATION OF URONIC ACIDS LEADING TO AMINOCYCLITOLS. IV. SYNTHESIS OF HEXAACETYL‐STREPTAMINE FROM N‐ACETYL‐D‐GLUCOSAMINE BY MEANS OF ELECTROLYTIC DECARBOXYLATION

I. Kitagawa, M. Yoshikawa, T. Kamigauchi, 1982 .

A new synthetic approach to aminolycoside antibiotics by use of oxidative decarboxylation and reductive deacetoxylation as key-reactions

I. Kitagawa, M. Yoshikawa, H. Kayakiri, 1982 .

Facile syntheses of pseudo-α-d-arabinofuranose, and two pseudo-d-arabinofuranosylnucleosides, (+)-cyclaradine and (+)-1-pseudo-β-d-arabinofuranosyluracil, from d-arabinose

N. Murakami, I. Kitagawa, M. Yoshikawa, 1994 .

Clavukerin A, a new trinor-guaiane sesquiterpene from the Okinawan soft coral Clavularia koellikeri

Y. Kyōgoku, Motomasa Kobayashi, B. Son, 1983 .

Syntheses of Two Pairs of Enantiomeric C18-Sphingosines and a Palmitoyl Analogue of Gaucher Spleen Glucocerebroside

I. Kitagawa, M. Ikeda, K. Kawashima, 1992 .

New prostanoids from soft coral

Y. Kyōgoku, Motomasa Kobayashi, B. Son, 1985 .

Synthesis of two pairs of enantiomeric C18-sphingosines

I. Kitagawa, M. Ikeda, K. Kawashima, 1989 .

SYNTHESES OF PSEUDO-α-D-GLUCOPYRANOSE, PSEUDO-β-D-GLUCOPYRANOSE, AND VALIDAMINE FROM D-GLUCURONOLACTONE

N. Murakami, I. Kitagawa, M. Yoshikawa, 1993 .

A NEW APPROACH TO THE SYNTHESIS OF OPTICALLY ACTIVE CYCLOHEXANE ANALOGS OF NUCLEOSIDE USING A MICHAEL-TYPE ADDITION REACTION TO NITRO-CYCLOHEXENES AS A KEY REACTION

I. Kitagawa, M. Yoshikawa, Y. Takinami, 1989 .

Syntheses of validamine, epi-validamine, and valienamine, three optically active pseudo-amino-sugars, from D-glucose.

I. Kitagawa, M. Yoshikawa, Y. Yokokawa, 1988 .

Studies on the chemical modification of monensin. III. Synthesis and sodium ion transport activity of macrocyclic monensylamino acid-1,29-lactones.

A. Nakamura, N. Murakami, I. Kitagawa, 1991, Chemical & pharmaceutical bulletin.

Marine natural products. XXXVI. Biologically active polyacetylenes, adociacetylenes A, B, C, and D, from an Okinawan Marine sponge of Adocia sp.

T. Mayumi, S. Aoki, T. Mahmud, 1996, Chemical & pharmaceutical bulletin.

Pulosarioside, a new bitter trimeric-iridoid diglucoside, from an Indonesian jamu, the bark of Alyxia reinwardtii BL. (Apocynaceae).

H. Wiriadinata, I. Kitagawa, M. Yoshikawa, 1988 .

ABSOLUTE STEREOSTRUCTURES OF REHMAGLUTIN C AND GLUTINOSIDE A NEW IRIDOID LACTONE AND A NEW CHLORINATED IRIDOID GLUCOSIDE FROM CHINESE REHMANNIAE RADIX

I. Kitagawa, M. Yoshikawa, T. Taniyama, 1986 .

Infrared spectra and gas chromatography of some oxygenated fatty acid derivatives

I. Kitagawa, F. Kummerow, M. Sugai, 1962 .

Marine Natural Products. XV. : Chemical Constituents of an Okinawan Soft Coral of Xenia sp. (Xeniidae)

Motomasa Kobayashi, I. Kitagawa, Y. Kiyota, 1986 .

Stoloniferone-A, -B, -C, and -D, four new cytotoxic steroids from the Okinawan soft coral Clavularia viridis

Y. Kyōgoku, Motomasa Kobayashi, B. Son, 1984 .

SYNTHESIS OF A CHIRAL 1,1,3-TRIMETHYLCYCLOHEXANE DERIVATIVE FROM d-CAMPHOR: A POTENT KEY BUILDING BLOCK FOR ENT-TAXANE-TYPE DITERPENOIDS

I. Kitagawa, H. Fujioka, A. Takagi, 1980 .

Improved total synthesis and structure-activity relationship of arenastatin A, a potent cytotoxic spongean depsipeptide.

I. Kitagawa, M. Kurosu, M. Kobayashi, 1995, Chemical & pharmaceutical bulletin.

ARENASTATIN A, A POTENT CYTOTOXIC DEPSIPEPTIDE FROM THE OKINAWAN MARINE SPONGE DYSIDEA ARENARIA

S. Aoki, Motomasa Kobayashi, I. Kitagawa, 1994 .

Indonesian medicinal plants. I. Chemical structures of calotroposides A and B, two new oxypregnane-oligoglycosides from the root of Calotropis gigantea (Asclepiadaceae).

Y. Takeda, I. Kitagawa, M. Yoshikawa, 1992, Chemical & pharmaceutical bulletin.

Indonesian Medicinal Plants. V. Chemical Structures of Calotroposides C, D, E, F, and G, Five Additional New Oxypregnane-Oligoglycosides from the Root of Calotropis gigantea (Asclepiadaceae)

Y. Takeda, I. Kitagawa, M. Yoshikawa, 1992 .

Indonesian Medicinal Plants. XII. Four Isomaric Lignan-Glucosides from the Bark of Aegle marmelos (Rutaceae)

I. Kitagawa, Y. Okumura, K. Ohashi, 1994 .

Saponin and sapogenol. XXXVIII. Structure of soyasaponin A2, a bisdesmoside of soyasapogenol A, from soybean, the seeds of Glycine max Merrill.

I. Kitagawa, M. Yoshikawa, T. Taniyama, 1985 .

Saponin and sapogenol. XXXV. Chemical constituents of astragali radix, the root of Astragalus membranaceus Bunge. (2). Astragalosides I,II and IV, acetylastragaloside I and isoastragalosides I and II.

I. Kitagawa, M. Yoshikawa, Huikang Wang, 1983 .

Absolute stereostructures of claviridenone-A, -B, -C, and -D four prostanoids from the Okinawan soft coral Clavularia viridis.

Y. Kyōgoku, Motomasa Kobayashi, B. Son, 1983 .

Four new prostanoids: Claviridenone-A, -B, -C, and -D from the okinawan soft coral

Y. Kyōgoku, Motomasa Kobayashi, I. Kitagawa, 1982 .

Effects of soyasaponin on experimental disseminated intravascular coagulation. I.

I. Kitagawa, M. Kubo, H. Matsuda, 1984, Chemical & pharmaceutical bulletin.

Saponin and sapogenol. XL. Structure of sophoraflavoside I, a bisdesmoside of soyasapogenol B, from Sophorae Radix, the root of Sophora flavescens Aiton.

Isao Kitagawa, Masayuki Yoshikawa, I. Kitagawa, 1985 .

Saponin and sapogenol. XXXI: Chemical constituents of the seeds of Vigna angularis (Willd.) Ohwi et Ohashi. (1): Triterpenoidal sapogenols and 3-furanmethanol β-D-glucopyranoside

I. Kitagawa, M. Yoshikawa, Huikang Wang, 1983 .

Saponin and Sapogenol. XXXIII. Chemical Constituents of the Seeds of Vigna angularis (WILLD.) OHWI et OHASHI. (3). Azukisaponins V and VI

I. Kitagawa, M. Yoshikawa, Huikang Wang, 1983 .

REVISED STRUCTURES OF SOYASAPOGENOLS A, B, AND E, OLEANENE-SAPOGENOLS FROM SOYBEAN. STRUCTURES OF SOYASAPONINS I, II, AND III

I. Kitagawa, M. Yoshikawa, T. Fujiwara, 1982 .

Saponin and Sapogenol. XIII. Structures of Three Soybean Saponins : Soyasaponin I, Soyasaponin II, and Soyasaponin III

I. Yosioka, I. Kitagawa, M. Yoshikawa, 1976 .

[Bioactive marine natural products].

I. Kitagawa, 1988, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

Inhibitory effect of rehmaionoside B, a constituent of rehmaniae radix, on isolated bladder and urethral smooth muscle of mice

I. Kitagawa, I. Kimura, M. Kimura, 1991 .

The configuration and conformation of the arabinose moiety in platycodins, saponins isolated from , and mi-saponins from based on carbon-13 and hydrogen-1 nmr spectroscopic evidence: The total structures of the saponins

H. Ishii, I. Kitagawa, M. Yoshikawa, 1981 .

THE ABSOLUTE STEREOSTRUCTURE OF (4S, 5S)-(+)-GERMACRONE 4, 5-EPOXIDE FROM ZEDOARIAE RHIZOMA CULTIVATED IN YAKUSHIMA ISLAND

K. Yanagi, I. Kitagawa, H. Shibuya, 1984 .

Absolute Stereostructure of Furanogermenone, a Biologically Active Sesquiterpene from Zedoariae Rhizoma

I. Kitagawa, I. Miura, Yoshio Yamamoto, 1982 .

A REINVESTIGATION OF THE STRUCTURE OF ZEDERONE, A FURANOGERMACRANE-TYPE SESQUITERPENE FROM ZEDOARY

I. Kitagawa, H. Shibuya, Y. Hamamoto, 1987 .

Saponin and Sapogenol. VIII. Photochemical Cleavage of Glycoside Linkage in Saponin. (1). Photolysis of Some Saponins and Their Structural Features

I. Yosioka, I. Kitagawa, M. Yoshikawa, 1974 .

Saponin and Sapogenol. VI. Sapogenol Constituents of Leaves of Pittosporum tobira AIT.

I. Yosioka, K. Hino, I. Kitagawa, 1972 .

Picroside I : A bitter principle of picrorhiza kurrooa

I. Yosioka, K. Hino, I. Kitagawa, 1969 .

On the unexpected identity of theasapogenol D (=camelliagenin A), a minor sapogenol of tea seeds, with dihydropriverogenin A.

I. Yosioka, I. Kitagawa, T. Nishimura, 1967 .

Saponin and Sapogenol. XXIV. The Structure of Mi-Saponin C, a Bisdesmoside of Protobassic Acid from the Seed Kernels of Madhuca longifolia (L.) MACBRIDE

I. Kitagawa, M. Yoshikawa, K. Shirakawa, 1978 .

Saponin and Sapogenol. XXIII. Degradation of Methyl Glucuronide and Methyl Galacturonide by Lead Tetraacetate Oxidation followed by Alkali Treatment

I. Kitagawa, M. Yoshikawa, A. Kadota, 1978 .

Structure of holothurin B a pharmacologically active triterpene-oligoglycoside from the sea cucumber holothuria leucospilota brandt

Y. Kyōgoku, I. Kitagawa, H. Akutsu, 1978 .

Saponin and Sapogenol. XXII. Structure of Spergulatriol, A New Bisnorhopane-type Genuine Sapogenol of Isoanhydrospergulatriol, from the Root of Mollugo spergula L.

I. Yosioka, I. Kitagawa, T. Nakanishi, 1977 .

Saponin and Sapogenol. XX. Selective Cleavage of the Glucuronide Linkage in Saponin by Acetic Anhydride and Pyridine Treatment

K. Im, I. Kitagawa, M. Yoshikawa, 1977 .

Saponin and Sapogenol. XIX. Selective Cleavage of the Glucuronide Linkage in Saponin by Lead Tetraacetate Oxidation followed by Alkali Treatment

K. Im, I. Kitagawa, M. Yoshikawa, 1977 .

Saponin and Sapogenol. XXI. Photochemical Cleavage of Glycoside Linkage in Triterpenoidal and Steroidal Arabinoside and Galactoside via Ultraviolet Irradiation of Their 2'-Keto Derivatives

K. Im, I. Kitagawa, Y. Fujimoto, 1977 .

Spergulatriol, a new bisnor-triterpenoid sapogenol from the root of mollugo spergula L.

I. Yosioka, I. Kitagawa, T. Nakanishi, 1976 .

Saponin and Sapogenol. XII. Mi-Saponin A and Mi-Saponin B, Two Major Bisdesmosides from the Seed Kernels of Madhuca longifolia (L.) MACBRIDE

I. Yosioka, I. Kitagawa, A. Inada, 1975 .

Saponin and sapogenol. XI. Chemical correlation of spergulagenin A, a new migrated hopane-type sapogenol,with hydroxyhopane.

I. Yosioka, I. Kitagawa, Hideyo Suzuki, 1975 .

Saponin and Sapogenol. IX. Structure of Spergulagenin A, a New Migrated Hopane-type Sapogenol isolated from Mollugo spergula L.

I. Yosioka, I. Kitagawa, Hideyo Suzuki, 1975 .

Structure of stichopogenin A4, the genuine aglycone of holotoxin a isolated niom stichopus japonicus selenka

I. Yosioka, I. Kitagawa, T. Sugawara, 1975 .

Structure of holotoxin A, A major antifungal glycoside of stichopus japonicus selenka

I. Yosioka, I. Kitagawa, T. Sugawara, 1975 .

Structures of Three Soybean Saponins : Soyasaponin I, II, and III

I. Yosioka, I. Kitagawa, M. Yoshikawa, 1974 .

Structure of spergulagenin a isolated from mollugo spergula l. Possessing a new migrated hopane skeleton

I. Yosioka, I. Kitagawa, T. Akiyama, 1974 .

Soil bacterial hydrolysis leading to genuine aglycone—VIII : Structures of a genuine sapogenol protobassic acid and a prosapogenol of seed kernels of Madhuca longifolia L.

I. Yosioka, I. Kitagawa, A. Inada, 1974 .

Marine natural products. XIV. Structures of echinosides A and B, antifungal lanostane-oligosides from the sea cucumber Actinopyga echinites (Jaeger).

Y. Kyōgoku, I. Kitagawa, M. Kobayashi, 1985, Chemical & pharmaceutical bulletin.

Saponin and sapogenol. XXIX. Selective cleavage of the glucuronide linkage in oligoglycosides by anodic oxidation.

I. Kitagawa, M. Yoshikawa, H. Ohmori, 1980 .

Saponin and Sapogenol. VII. Sapogenol Constituents of Five Primulaceous Plants

I. Yosioka, I. Kitagawa, A. Matsuda, 1972 .

Indonesian Medicinal Plants. XIV. Characterization of 3'-O-Caffeoylsweroside, a new secoiridoid glucoside, and kelampayosides A and B, two new phenolic apioglucosides, from the bark of Anthocephalus chinensis (Rubiaceae).

T. Mahmud, I. Kitagawa, M. Kobayashi, 1996, Chemical & pharmaceutical bulletin.

[Qualitative and quantitative analysis of essential oil constituents in various Zedoariae rhizoma (gajutsu) by means of gas liquid chromatography-mass spectrometry].

I. Kitagawa, H. Shibuya, M. Yoshihara, 1986, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

Marine Natural Products. XIX. : Pervicosides A, B, and C, Lanostane-Type Triterpene-Oligoglycoside Sulfates from the Sea Cucumber Holothuria pervicax

Y. Kyōgoku, Motomasa Kobayashi, B. Son, 1989 .

On the Constituents of Linaria japonica MIQ. I. The Structure of Linarioside, a New Chlorinated Iridoid Glucoside and Identification of Two Related Glucosides

I. Yosioka, I. Kitagawa, T. Tani, 1973 .

Soil Bacterial Hydrolysis leading to Genuine Aglycone. III. The Structures of Glycosides and Genuine Aglycone of Sanguisorbae Radix

I. Yosioka, I. Kitagawa, T. Sugawara, 1971 .

The chemical prooff of hopane skeleton of zeorin.

I. Kitagawa, T. Nakanishi, I. Yoshioka, 1967, Chemical & pharmaceutical bulletin.

Three new oleanene glycosides from Sophora flavescens.

T. Nohara, I. Kitagawa, J. Kinjo, 1992, Chemical & pharmaceutical bulletin.

Effects of soyasaponins on liver injury induced by highly peroxidized fat in rats.

I. Kitagawa, M. Yoshikawa, Y. Kimura, 1984, Planta medica.

Lichen Triterpenoids. V. On the Neutral Triterpenoids of Pyxine endochrysina NYL

I. Yosioka, I. Kitagawa, H. Yamauchi, 1972 .

Saponin and Sapogenol. XXVIII. Reinvestigation of the Branching Positions in the Glucuronide Moieties of Three Glucuronide Saponins : Desacyl-jegosaponin, Desacyl-boninsaponin A, and Sakuraso-saponin

Katsuya Kobayashi, K. Im, I. Kitagawa, 1980 .

Capillartemisin A and B, two new choleretic principles from Artemisiae Capillaris Herba.

I. Kitagawa, M. Yoshikawa, J. Yamahara, 1983, Chemical & pharmaceutical bulletin.

Biogenetically Patterned Transformation of Eudesmanolide to Eremo-philanolide. II. Structures of Minor Products obtained by Acid Treatment of 5α, 6α-Epoxy-eudesman-8β, 12-olide

I. Yosioka, I. Kitagawa, H. Shibuya, 1976 .

Biogenetically Patterned Transformation of Eudesmanolide to Eremophilanolide. I. Angular Methyl Migration of 5α, 6α-Epoxy-dihydroalantolactone

I. Kitagawa, Y. Yamazoe, H. Shibuya, 1974 .

Soil Bacterial Hydrolysis leading to Genuine Aglycone. V. On Ginsenosides-Rb1, Rb2, and Rc of the Ginseng Root Saponins

I. Yosioka, I. Kitagawa, T. Sugawara, 1972 .

Indonesian medicinal plants. XXI. Inhibitors of Na+/H+ exchanger from the bark of Erythrina variegata and the roots of Maclura cochinchinensis.

T. Mahmud, I. Kitagawa, M. Kobayashi, 1997, Chemical & pharmaceutical bulletin.

Indonesian medicinal plants. IX. Chemical structures of gongganosides A, B, and C, three new quinovic acid glycosides from the bark of Bhesa paniculata (Celastraceae).

K. Kawazoe, I. Kitagawa, H. Kojima, 1994, Chemical & pharmaceutical bulletin.

Saponin and Sapogenol. XXVI. Steroidal Saponins from the Starfish Acanthaster planci L. (Crown of Thorns). (2). Structure of the Major Saponin Thornasteroside A

Motomasa Kobayashi, I. Kitagawa, Motomasa Kobayashi, 1978 .

Chemical Studies on Crude Drug Processing. VII. On the Constituents of Rehmanniae Radix. (1) : Absolute Stereostructures of Rehmaglutins A, B, and D Isolated from Chinese Rehmanniae Radix, the Dried Root of Rehmannia glutinosa LIBOSCH.

I. Kitagawa, M. Yoshikawa, T. Taniyama, 1991 .

Studies on fungal metabolites—XXXII

U. Sankawa, I. Kitagawa, Y. Ogihara, 1973 .

Marine Natural Products. XXVIII. The Structures of Sarasinosides A1, A2, A3, B1, B2, B3, C1, C2, and C3, Nine New Norlanostane-Triterpenoidal Oligoglycosides from the Palauan Marine Sponge Asteropus sarasinosum

Motomasa Kobayashi, I. Kitagawa, Y. Okamoto, 1991 .

Marine natural products. XVIII. Four lanostane-type triterpene oligoglycosides, bivittosides A, B, C, and D, from the Okinawan sea cucumber Bohadschia bivittata Mitsukuri.

Y. Kyōgoku, Motomasa Kobayashi, I. Kitagawa, 1989 .

Inhibition by ginsenoside Rg3 of bombesin-enhanced peritoneal metastasis of intestinal adenocarcinomas induced by azoxymethane in Wistar rats

H. Iishi, M. Tatsuta, S. Ishiguro, 1997, Clinical & Experimental Metastasis.

Effects of crude drugs on congestive edema.

I. Kitagawa, M. Yoshikawa, H. Fujimura, 1979, Chemical & pharmaceutical bulletin.

ABSOLUTE STEREOSTRUCTURES OF PAEONISOTHUJONE, A NOVEL SKELETAL MONOTERPENE KETONE, AND DEOXYPAEONISUFFRONE, AND ISOPAEONISUFFRAL, TWO NEW MONOTERPENES, FROM MOUTAN CORTEX

N. Murakami, I. Kitagawa, M. Yoshikawa, 1994 .

ABSOLUTE STEREOSTRUCTURES OF PAEONISUFFRONE AND PAEONISUFFRAL, TWO NEW LABILE MONOTERPENES, FROM CHINESE MOUTAN CORTEX

N. Murakami, I. Kitagawa, M. Yoshikawa, 1993 .

Galloyl-oxypaeoniflorin, suffruticosides A, B, C, and D, five new antioxidative glycosides, and suffruticoside E, A paeonol glycoside, from Chinese moutan cortex.

I. Kitagawa, M. Yoshikawa, J. Yamahara, 1992, Chemical & pharmaceutical bulletin.

CHEMICAL MODIFICATION OF OLEANENE-OLIGOGLYCOSIDES BY MEANS OF ANODIC OXIDATION

I. Kitagawa, M. Yoshikawa, V. Tosirisuk, 1982 .

Photochemical transformation leading to eupteleogenin—I: Introduction of epoxy-lactone system

I. Kitagawa, K. Kitazawa, L. Yosioka, 1972 .

The Structures of Six Antifungal Oligoglycosides, Stichlorosides A1, A2, B1, B2, C1, and C2, from the Sea Cucumber Stichopus Chloronotus (BRANDT)

Y. Kyōgoku, Motomasa Kobayashi, I. Kitagawa, 1981 .

Mammosides B and H1, new ionophoric resin-glycosides from the tuber of Merremia mammosa, an indonesian folk medicine.

M. Sakagami, I. Kitagawa, M. Yoshikawa, 1989 .

Thornasterol A and B, two genuine sapogenols from the starfish acanthaster planci

Motomasa Kobayashi, I. Yosioka, I. Kitagawa, 1975 .

Chemical transformation of terpenoids. X. Ionophoretic activities of macrocyclic lactone epoxides synthesized from geraniol.

T. Ishida, I. Kitagawa, H. Shibuya, 1993, Chemical & pharmaceutical bulletin.

Synthesis of (11S)-(+)- and (11R)-(−)-jalapinolic acids. a revision of chemical structures of merremosides B and D

I. Kitagawa, M. Yoshikawa, N. Baek, 1989 .

Control of Phenotypic Expression of Cultured B 16 Melanoma Cells by Plant Glycosides 1 OÃ „-Ã „

Ohta, I. Kitagawa, H. Kohno, 2006 .

[Quantitative determination of constituents in various licorice roots by means of high performance liquid chromatography].

I. Kitagawa, M. Kobayashi, W. Chen, 1998, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

Saponin and sapogenol. XLIX. On the constituents of the roots of Glycyrrhiza inflata Batalin from Xinjiang, China. Characterization of two sweet oleanane-type triterpene oligoglycosides, apioglycyrrhizin and araboglycyrrhizin.

M. Sakagami, I. Kitagawa, M. Yoshikawa, 1993, Chemical & pharmaceutical bulletin.

New steroidal prosapogenins possessing fully acetylated arabinoside linkage at C-11

I. Yosioka, I. Kitagawa, K. Imai, 1971 .

Inhibition of in vitro Tumor Cell Invasion by Ginsenoside Rg3

Motomasa Kobayashi, I. Kitagawa, F. Imamura, 1996, Japanese journal of cancer research : Gann.

Syntheses of a glycerophospholipid, C16-platelet activating factor and a palmitoyl analogue of M-5, an anti-inflammatory glyceroglycolipid.

I. Kitagawa, K. Kawashima, H. Shibuya, 1992, Chemical & pharmaceutical bulletin.

Synthesis of ribostamycin. An application of a chemical conversion method from carbohydrate to aminocyclitol

I. Kitagawa, M. Yoshikawa, M. Torihara, 1984 .

Blocking effects of blended paeoniflorin or its related compounds with glycyrrhizin on neuromuscular junctions in frog and mouse.

M. Muroi, I. Kitagawa, I. Kimura, 1984, Japanese journal of pharmacology.

Conversion of dihydroalantolactone to eremophilane-type derivatives: A biogenetic-type transformation

I. Yosioka, I. Kitagawa, Y. Yamazoe, 1972 .

Antifungal peroxyketal acids from an Okinawan marine sponge of Plakortis sp.

I. Kitagawa, M. Kobayashi, K. Kondo, 1993, Chemical & pharmaceutical bulletin.

The structure of saikogenin A, a sapogenin of Bupleurum species.

I. Kitagawa, H. Fujimoto, S. Shibata, 1965, Tetrahedron letters.

Conversion of dihydroalantolactone to tetrahydroligularenolide a biogenetic-type transformation of eudesmanolide to eremophilanolide

I. Yosioka, I. Kitagawa, Y. Yamazoe, 1974 .

[Biologically active principles of crude drugs. Antidiabetic principles of corni fructus in experimental diabetes induced by streptozotocin (author's transl)].

I. Kitagawa, M. Yoshikawa, H. Fujimura, 1981, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

Skyrin from Two Lichen Species

I. Yosioka, I. Kitagawa, H. Yamauchi, 1971 .

Marine Natural Products. XXXII. Absolute Configurations of C-4 of the Manoalide Family, Biologically Active Sesterterpenes from the Marine Sponge Hyrtions erecta

Motomasa Kobayashi, Takuma Sasaki, I. Kitagawa, 1994 .

Marine natural products. XXXII. Absolute configurations of C-4 of the manoalide family, biologically active sesterterpenes from the marine sponge Hyrtios erecta.

I. Kitagawa, T. Sasaki, M. Kobayashi, 1994, Chemical & pharmaceutical bulletin.

Structures of sarasinosides A1, B1, and C1; new norlanostane-triterpenoid oligoglycosides from the Palauan marine sponge Asteropus sarasinosum.

I. Kitagawa, M. Yoshikawa, Y. Okamoto, 1987, Chemical & pharmaceutical bulletin.

Marine natural products. XVII. Nephtheoxydiol, a new cytotoxic hydroperoxy-germacrane sesquiterpene, and related sesquiterpenoids from an Okinawan soft coral of Nephthea sp. (Nephtheidae).

Y. Kyōgoku, B. Son, I. Kitagawa, 1987, Chemical & pharmaceutical bulletin.

Clavukerin C, a new trinor-guaiane sesquiterpene having a hydroperoxy function, from the Okinawan soft coral Clavularia koellikeri.

Y. Kyōgoku, Motomasa Kobayashi, B. Son, 1984 .

Marine Natural Products. XXVII. Distribution of Lanostane-Type Triterpene Oligoglycosides in Ten Kinds of Okinawan Sea Cucumbers

Motomasa Kobayashi, I. Kitagawa, T. Yasuzawa, 1991 .

Malformation of Immature Starfish Oocytes by Theonellapeptolide Ie, a Tridecapeptide Lactone from a Marine Sponge Petrosia Species, through Disturbance of Cortical F-Actin Distribution

Motomasa Kobayashi, H. Hosoya, I. Kitagawa, 2003, Bioscience, biotechnology, and biochemistry.

[Chemical studies on crude drug processing. V. On the constituents of ginseng radix rubra (2): Comparison of the constituents of white ginseng and red ginseng prepared from the same Panax ginseng root].

I. Kitagawa, M. Yoshikawa, T. Taniyama, 1987, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

[Chemical investigation of naturally occurring drug materials. Elucidation of scientific basis for traditional medicines and exploitation of new naturally occurring drugs].

I. Kitagawa, 1992, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

Chemical Studies on Crude Drug Processing. VI. : Chemical Structures of Malonyl-ginsenosides Rb1, Rb2, Rc, and Rd Isolated from the Root of Panax ginseng C. A. MEYER

I. Kitagawa, M. Yoshikawa, Y. Nakagawa, 1989 .

Metabolic Products of Fungi. XV. Pachymic Acid, a Constituent of"Bukuryo"(Fu Ling ?? ?? ), a Sclerotium of Poria cocos (SCHW.) WOLF.

S. Natori, I. Kitagawa, S. Shibata, 1958 .

A NEW APPROACH TO THE SYNTHESIS OF OPTICALLY ACTIVE PSEUDO-SUGAR AND PSEUDO-NUCLEOSIDE -SYNTHESES OF PSEUDO-α-D-ARABINOFURANOSE, (+)-CYCLARADINE, AND (+)-1, PSEUDO-β-D-ARABINOFURANOSYLURACIL FROM D-ARABINOSE -

N. Murakami, I. Kitagawa, M. Yoshikawa, 1993 .

[Chemical studies on crude drug processing. II. Aconiti tuber (1). On the constituents of "chuan-wu", the dried tuber of Aconitum carmichaeli Debx].

I. Kitagawa, M. Yoshikawa, Z. L. Chen, 1984, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

FOUR NEW LIPO-ALKALOIDS FROM ACONITI TUBER

Katsuya Kobayashi, I. Kitagawa, M. Yoshikawa, 1982 .

Stichlorogenol and Dehydrostichlorogenol, Genuine Aglycones of Stichlorosides A1, B1, C1 and A2, B2, C2, from the Sea Cucumber Stichopus Chloronotus (BRANDT)

Y. Kyōgoku, Motomasa Kobayashi, I. Kitagawa, 1981 .

Saponin and Sapogenol. XXVII. Revised Structures of Holotoxin A and Holotoxin B, Two Antifungal Oligoglycosides from the Sea Cucumber Stichopus japonicus SELENKA

Motomasa Kobayashi, I. Yosioka, I. Kitagawa, 1978 .

Antitumor Marine Natural Products

Motomasa Kobayashi, I. Kitagawa, 1992 .

Marine natural products. IX. Structural elucidation of triterpenoidal oligoglycosides from the Bahamean sea cucumber Actinopyga agassizi Selenka.

Y. Kyōgoku, Motomasa Kobayashi, I. Kitagawa, 1982 .

Lichen Triterpenoids. I. The Structure of Leucotylin

I. Yosioka, I. Kitagawa, T. Nakanishi, 1969 .

Marine natural products. X. Pharmacologically active glycolipids from the okinawan marine sponge Phyllospongia foliascens (Pallas).

Motomasa Kobayashi, I. Kitagawa, H. Kikuchi, 1982 .

Marine Natural Products. XXIX. Heterosigma-glycolipids I, II, III, and IV, Four Diacylglyceroglycolipids Possessing ω3-Polyunsaturated Fatty Acid Residues, from the Raphidopycean Dinoflagellate Heterosigma akashiwo

Motomasa Kobayashi, K. Kawazoe, I. Kitagawa, 1992 .

Heterosigma-glycolipids I and II, two new galactolipids containing octadecatetraenoyl and eicosapentaenoyl residues, from a raphidophyte dinoflagellate Heterosigma sp.

Motomasa Kobayashi, I. Kitagawa, K. Hayashi, 1989 .

Neodolabelline, a methyl migrated dolabellane-type diterpene from the okinawan soft coral clavularia koellikeri

Y. Kyōgoku, Motomasa Kobayashi, B. Son, 1984 .

On the constituents of Linaria japonica Miq. II. The structure of linaridial, a new cis-clerodane-type diterpene dialdehyde

I. Yosioka, I. Kitagawa, T. Tani, 1976 .

Saponin and Sapogenol. XXXIV. Chemical Constituents of Astragali Radix, the Root of Astragalus membranaceus BUNGE. (1). Cycloastragenol, the 9, 19-Cycloanostane-type Aglycone of Astragalosides, and the Artifact Aglycone Astragenol

I. Kitagawa, M. Yoshikawa, Huikang Wang, 1983 .

[Anti-tumor marine natural products].

I. Kitagawa, M. Kobayashi, 1990, Gan to kagaku ryoho. Cancer & chemotherapy.

[Chemical studies of crude drugs (1). Constituents of Ginseng radix rubra].

I. Kitagawa, M. Yoshikawa, T. Hayashi, 1983, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

Marine natural products. XXIII. Three new cytotoxic dimeric macrolides, swinholides B and C and isoswinholide A, congeners of swinholide A, from the Okinawan marine sponge Theonella swinhoei.

J. Tanaka, I. Kitagawa, M. Kobayashi, 1990, Chemical & pharmaceutical bulletin.

Trichoharzin, a new polyketide produced by the imperfect fungus Trichoderma harzianum separated from the marine sponge Micale cecilia

S. Aoki, Motomasa Kobayashi, I. Kitagawa, 1993 .

Marine Natural Products. XXXVIII. Absolute Stereostructures of Altohyrtins A, B, and C and 5-Desacetylaltohyrtin A, Potent Cytotoxic Macrolides, from the Okinawan Marine Sponge Hyrtios altum

S. Aoki, Motomasa Kobayashi, I. Kitagawa, 1996 .

Absolute stereostructures of altohyrtin A and its congeners, potent cytotoxic macrolides from the Okinawan marine sponge hyrtios altum

S. Aoki, Motomasa Kobayashi, I. Kitagawa, 1994 .

Sulfonoglycolipid from the sea urchin Anthocidaris crassispina A. Agassiz.

I. Kitagawa, M. Kobayashi, Y. Hamamoto, 1979, Chemical & pharmaceutical bulletin.

Licorice root. A natural sweetener and an important ingredient in Chinese medicine

I. Kitagawa, 2002 .

Escins-Ia, Ib, IIa, IIb, and IIIa, bioactive triterpene oligoglycosides from the seeds of Aesculus hippocastanum L.: their inhibitory effects on ethanol absorption and hypoglycemic activity on glucose tolerance test.

N. Murakami, I. Kitagawa, M. Yoshikawa, 1994, Chemical & pharmaceutical bulletin.

Marine Natural Products. XI. An Antiinflammatory Scalarane-type Bishomosesterterpene, Foliaspongin, from the Okinawan Marine Sponge Phyllospongia foliascens (PALLAS)

Motomasa Kobayashi, I. Kitagawa, H. Kikuchi, 1983 .

Indonesia medicinal plants. III. On the constituents of the bark of Fagara rhetza (Rutaceae). (1): Alkaloids, phenylpropanoids, and acid amide.

Y. Takeda, I. Kitagawa, H. Shibuya, 1992, Chemical & pharmaceutical bulletin.

Sphingolipids and glycerolipids. I. Chemical structures and ionophoretic activities of soya-cerebrosides I and II from soybean.

M. Sakagami, I. Kitagawa, K. Kawashima, 1990, Chemical & pharmaceutical bulletin.

A hotel cleavage method of saponin with soil bacteria, intending to the genuine sapogenin: On senega and panax saponins

I. Yosioka, M. Fujio, I. Kitagawa, 1966 .

APIOGLYCYRRHIZIN AND ARABOGLYCYRRHIZIN, TWO NEW SWEET OLEANENE-TYPE TRITERPENE OLIGOGLYCOSIDES FROM THE ROOT OF GLYCYRRHIZA INFLATA

M. Sakagami, I. Kitagawa, M. Yoshikawa, 1989 .

Saponin and sapogenol. L. On the constituents of the roots of Glycyrrhiza uralensis Fischer from Xinjiang, China. Chemical structures of licorice-saponin L3 and isoliquiritin apioside.

I. Kitagawa, M. Yoshikawa, W. Chen, 1993, Chemical and pharmaceutical bulletin.

Marine Natural Products. XX. : Bioactive Scalarane-Type Bishomosesterterpenes from the Okinawan Marine Sponge Phyllospongia foliascens

Y. Kyōgoku, Motomasa Kobayashi, I. Kitagawa, 1989 .

Foliaspongin, an antiinflammatory bishomosesterterpene from the marine sponge Phyllospongia foliascens (Pallas).

Motomasa Kobayashi, I. Kitagawa, H. Kikuchi, 1981 .

Selective inhibition of membrane fusion events in echinoderm gametes and embryos by halenaquinol sulfate

I. Kitagawa, S. Ikegami, S. Takayama, 1992, FEBS letters.

Novel neuronal nitric oxide synthase (nNOS) selective inhibitor, aplysinopsin-type indole alkaloid, from marine sponge Hyrtios erecta.

Y. Ye, S. Aoki, I. Kitagawa, 2001, Chemical & pharmaceutical bulletin.

Chemical studies of Chinese licorice-roots. I. Elucidation of five new flavonoid constituents from the roots of Glycyrrhiza glabra L. collected in Xinjiang.

I. Kitagawa, M. Yoshikawa, N. Yasuda, 1994, Chemical & pharmaceutical bulletin.

Chemical Studies of Chinese Licorice‐Roots. Part 1. Elucidation of Five New Flavonoid Constituents from the Roots of Glycyrrhiza glabra L. Collected in Xinjiang.

I. Kitagawa, M. Yoshikawa, N. Yasuda, 1995 .

Hypaconitine, the dominant constituent responsible for the neuromuscular blocking action of the Japanese-sino medicine "bushi" (aconite root).

M. Muroi, I. Kitagawa, I. Kimura, 1988, Japanese journal of pharmacology.

Photochemical transformation leading to eupteleogenin—II: Attempt to introduce terminal methylene moiety and transformation of spergulagenic acid to eupteleogenin

I. Yosioka, I. Kitagawa, M. Asanuma, 1972 .

Transformation of spergulagenic acid, a dicarboxylic triterpenoid, to eupteleogenin, a unique nortriterpenoid

I. Yosioka, I. Kitagawa, K. Kitazawa, 1970 .

Saponin and Sapogenol. XLVI. : On the Constituents in Aerial Part of American Alfalfa, Medicago sativa L. : The Structure of Dehydrosoyasaponin I

I. Kitagawa, M. Yoshikawa, T. Taniyama, 1988 .

[Chemical studies on crude drug processing. IV. Aconiti tuber (3). Quantitative determination of aconitine alkaloids in aconiti tuber by means of high performance liquid chromatography].

I. Kitagawa, M. Yoshikawa, Z. L. Chen, 1984, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

[Chemical studies on crude drug processing. III. Aconiti tuber (2). On the constituents of "pao-fuzi", the processed tuber of Aconitum carmichaeli Debx, and biological activities of lipo-alkaloids].

I. Kitagawa, M. Yoshikawa, K. Kobayashi, 1984, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

Indonesian medicinal plants. VIII. Chemical structures of three new triterpenoids, bruceajavanin A, dihydrobruceajavanin A, and bruceajavanin B, and a new alkaloidal glycoside, bruceacanthinoside, from the stems of Brucea javanica (Simaroubaceae).

T. Mahmud, I. Kitagawa, P. Simanjuntak, 1994, Chemical and pharmaceutical bulletin.

Altohyrtins B and C and 5-desacetylaltohyrtin A, potent cytotoxic macrolide congeners of altohyrtin A, from the Okinawan marine sponge Hyrtios altum.

S. Aoki, I. Kitagawa, T. Sasaki, 1993, Chemical & pharmaceutical bulletin.

[Biologically active principles of crude drugs. Pharmacological evaluation of the crude drug "Zhu" (author's transl)].

I. Kitagawa, J. Yamahara, T. Sawada, 1977, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

Marine Natural Products. XVI. : Structures of Five New Diterpenes from an Okinawan Soft Coral of Xenia sp. (Xeniidae)

Y. Kyōgoku, Motomasa Kobayashi, I. Kitagawa, 1986 .

Malonyl-ginsenosides Rb1,Rb2,Rc, and Rd, four new malonylated dammarane-type triterpene oligoglycosides from ginseng radix.

I. Kitagawa, M. Yoshikawa, T. Taniyama, 1983 .

Linarioside, a new chlorine containing iridoid glucoside, from linaria Japonica miq.

I. Yosioka, I. Kitagawa, T. Tani, 1972 .

Indonesian Medicinal Plants. Part 8. Chemical Structures of Three New Triterpenoids, Bruceajavanin A (Ia), Dihydrobruceajavanin A(II), and Bruceajavanin B (Ib), and a New Alkaloidal Glycoside, Bruceacanthinoside (III), from the Stems of Brucea javanica ( Simaroubaceae)

T. Mahmud, I. Kitagawa, P. Simanjuntak, 1995 .

Saponin and Sapogenol. XXXVI. Chemical Constituents of Astragali Radix, the Root of Astragalus membranaceus BUNGE. (3). Astragalosides III, V, and VI

I. Kitagawa, M. Yoshikawa, Huikang Wang, 1983 .

ISOMERIZATION OF DIMERIC 2,9-DISUBSTITUTED 1-OXAQUINOLIZIDINE ALKALOIDS AND STRUCTURAL REVISION OF ARAGUSPONGINES B AND E, ISOLATED FROM A MARINE SPON GE OF XESTOSPONGIA SP.

S. Aoki, T. Ishida, I. Kitagawa, 1998 .

The Chemical Studies on Oriental Plant Drugs. XIV : she Constituents of Bupleurum spp. (1)

I. Kitagawa, H. Fujimoto, S. Shibata, 1966 .

Saponin and Sapogenol. XLII. : Structures of Acetyl-soyasaponins A1, A2, and A3, Astringent Partially Acetylated Bisdesmosides of Soyasapogenol A, from American Soybean, the Seeds of Glycine max MERRILL.

F. Yamauchi, I. Kitagawa, M. Yoshikawa, 1988 .

Four new bisabolene-type aminosesquiterpenes from an Okinawan marine sponge, Theonella sp. (Theonellidae).

I. Kitagawa, M. Yoshikawa, Y. Hamamoto, 1987 .

Marine spongean cytotoxins.

I. Kitagawa, M. Kobayashi, 1999, Journal of natural toxins.

Saponin and Sapogenol. XVII. Structure of Sakuraso-saponin, a Pentaglycoside of Protoprimulagenin A from the Root of Primula sieboldi E. MORREN

I. Yosioka, I. Kitagawa, M. Yoshikawa, 1976 .

Saponin and Sapogenol. X. Structures of Jegosapogenin and Desacyljegosaponin obtained from Pericarps of Styrax japonica SIEB. et ZUCC.

I. Yosioka, I. Kitagawa, Y. Imakura, 1975 .

Comparative study on the sapogenin constituents of five primulaceous plants.

I. Kitagawa, A. Matsuda, T. Nishimura, 1967, Chemical & pharmaceutical bulletin.

Genuine Sapogenins of three Primulaceous Plants

I. Yosioka, I. Kitagawa, A. Matsuda, 1968 .

Histochemistry. V. Soyasaponins in Soybeans (Glycine max MERRILL, Seeds)

I. Kitagawa, M. Kubo, S. Arichi, 1985 .

Saponin and sapogenol. XLIII: Acetyl-soyasaponins A4, A5, and A6, new astringent bisdesmosides of soyasapogenol A, from Japanese soybean, the seeds of Glycine max MERRILL

I. Kitagawa, M. Yoshikawa, T. Taniyama, 1988 .

Protobassic Acid, a Genuine Sapogenol of Seed Kernels of Madhuca longifolia L.

R. Somanathan, I. Yosioka, I. Kitagawa, 1972 .

The structure of jegosapogenin: 21-tigloyl-barringtogenol C

I. Yosioka, I. Kitagawa, Teruaki Hayashi, 1967 .

Triterpenoid glycosides from bark of Meliosma lanceolata.

I. Kitagawa, F. Abe, T. Yamauchi, 1996, Phytochemistry.

Indole Alkaloids from the Leaves of Alstonia villosa in Sunbawa (Alstonia 6).

I. Kitagawa, F. Abe, T. Yamauchi, 1999 .

Differential effects of ginsenoside Rb1 and malonylginsenoside Rb1 on long-term potentiation in the dentate gyrus of rats

N. Nishiyama, K. Abe, H. Saito, 1994, Brain Research.

[Quantitative determination of soyasaponins in soybeans of various origins and soybean products by means of high performance liquid chromatography].

I. Kitagawa, M. Yoshikawa, T. Hayashi, 1984, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

[Characterization of saponin constituents in soybeans of various origins and quantitative analysis of soyasaponins by gas-liquid chromatography].

I. Kitagawa, M. Yoshikawa, T. Hayashi, 1984, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

Indonesian Medicinal Plants. IV. On the Constituents of the Bark of Fagara rhetza (Rutaceae). (2). Lignan Glycosides and Two Apioglucosides.

Y. Takeda, I. Kitagawa, A. Tanitame, 1992 .

Indonesian medicinal plants. XIX. 1) Chemical structures of four additional resin-glycosides, mammosides A, B, H1, and H2, from the tuber of Merremia mammosa (Convolvulaceae).

M. Sakagami, I. Kitagawa, M. Yoshikawa, 1997, Chemical & pharmaceutical bulletin.

Indonesian medicinal plants. XVI. Chemical structures of four new resin-glycosides, merremosides f, g, h1, and h2, from the tuber of Merremia mammosa (Convolvulaceae).

I. Kitagawa, M. Yoshikawa, N. Baek, 1996, Chemical & pharmaceutical bulletin.

Indonesian medicinal plants. XV. Chemical structures of five new resin-glycosides, merremosides a, b, c, d, and e, from the tuber of Merremia mammosa (Convolvulaceae).

I. Kitagawa, M. Yoshikawa, N. Baek, 1996, Chemical & pharmaceutical bulletin.

A NEW METHOD FOR MEASURING IONOPHORETIC ACTIVITY USING A GLASS-CELL APPARATUS EQUIPPED WITH ARTIFICIAL MEMBRANES

I. Kitagawa, Toshihiro Yamamoto, H. Shibuya, 1989 .

Studies on MOUTAN CORTEX (II) : On the Chemical Constituents

I. Kitagawa, M. Yoshikawa, T. Tani, 1979 .

On the Constituents of Picrorhiza kurrooa. (1). The Structure of Picroside I, a Bitter Principle of the Subterranean Part

I. Yosioka, K. Hino, I. Kitagawa, 1971 .

Lichen Triterpenoids. II. The Stereostructure of Zeorin

I. Yosioka, I. Kitagawa, T. Nakanishi, 1969 .

Total Synthesis, Absolute Configuration, and Later Isolation of (-)-Prehalenaquinone, a Putative Biosynthetic Precursor to the Marine Natural Products: Halenaquinone and Xestoquinone

N. Harada, Motomasa Kobayashi, I. Kitagawa, 1994 .

Structure of theonellapeptolide id a new bioactive peptolide from an okinawan marine sponge theonella sp theonelliae

Motomasa Kobayashi, Y. Kawata, I. Kitagawa, 1986 .

Linaridial, a new cis-clerodane-type diterpene dialdehyde, from linaria japonica miq.

I. Yosioka, I. Kitagawa, T. Tani, 1975 .

Linarienone, a new cis-clerodane-type diterpene from the subterranean part of Linaria japonica Miq.

I. Kitagawa, T. Kamigauchi, M. Yoshihara, 1977 .

Studies on Coumarins from the Root of Angelica decursiva FR. et SAV. : II. Stereostructures of Decursin, Decursidin, and Other New Pyranocoumarin Derivatives

I. Yosioka, I. Kitagawa, K. Sano, 1975 .

On the constituents of the lichen in the genus Menegazzia. Menegazziaic acid, a new depsidone from Menegazzia asahinae (Yas. ex Zahlbr.) Sant. and Menegazzia terebrata (Hoffm.) Mass.

I. Yosioka, I. Kitagawa, T. Hirayama, 1976 .

Coloring Substances of a Lichen Cetraria ornata

I. Yosioka, I. Kitagawa, H. Yamauchi, 1972 .

Five new steroidal glycosides, pregnedioside-A, -B, and their three monoacetates, from an Okinawan soft coral of Alcyonium sp.

Y. Kyōgoku, Motomasa Kobayashi, I. Kitagawa, 1984 .

THREE NEW ent-VALERENANE SESQUITERPENES FROM AN OKINAWAN SOFT CORAL

Y. Kyōgoku, Motomasa Kobayashi, I. Kitagawa, 1982 .

Alcyonolide, a novel diterpenoid from a soft coral

Y. Kyōgoku, Motomasa Kobayashi, Yuji Kobayashi, 1981 .

Four new β-carboline alkaloids isolated from two Okinawan marine sponges of Xestospongia sp. and Haliclona sp.)

S. Aoki, Motomasa Kobayashi, T. Ishida, 1995 .

Lichen Triterpenoids. III. The Final Conclusion on the Stereostructure of Zeorin and Its Correlation with Leucotylin. The Structure of Isoleucotylin

I. Yosioka, I. Kitagawa, T. Nakanishi, 1972 .

Lichen Triterpenoids. IV. The Structures of Leucotylic Acid and Methyl Isoleucotylate, an Acid-induced Isomer of Methyl Leucotylate

I. Yosioka, I. Kitagawa, T. Nakanishi, 1972 .

Pharmacological Study on Panax ginseng C.A. MEYER V. : Effects of Red Ginseng on the Experimental Disseminated Intravascular Coagulation (4). On Ginsenoside-Rg3, Rh1 and Rh2

I. Kitagawa, M. Kubo, H. Matsuda, 1985 .

[Chemical study of Indonesian medicinal plants].

I. Kitagawa, H. Shibuya, 1996, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

Chemical Study of Indonesian Medicinal Plants

I. Kitagawa, H. Shibuya, 1997 .

Indonesian medicinal plants. X. Chemical structures of four new triterpene-glycosides, gongganosides D, E, F, and G, and two secoiridoid-glucosides from the bark of Bhesa paniculata (Celastraceae).

K. Kawazoe, I. Kitagawa, Y. Okumura, 1994, Chemical & pharmaceutical bulletin.

Structures of new acylated oleanene-type triterpene oligoglycosides, theasaponins E1 and E2, from the seeds of tea plant, Camellia sinensis (L.) O. Kuntze.

I. Kitagawa, M. Yoshikawa, T. Murakami, 1998, Chemical & pharmaceutical bulletin.

On the Constituents of Linaria japonica MIQ. IV. Chemical Correlation of cis-Clerodane Diterpenes with trans-Clerodane Diterpenes

I. Kitagawa, T. Kamigauchi, M. Yoshihara, 1980 .

On the Constituents of Linaria japonica MIQ. III. The Structure of Linarienone, a New cis-Clerodane-type Diterpene

I. Kitagawa, T. Kamigauchi, M. Yoshihara, 1978 .

New Cassane Diterpenes from Caesalpinia bonduc (Fabaceae).

H. Noguchi, I. Kitagawa, T. Kinoshita, 1996 .

Structure of theonellapeptolide Ie, a new tridecapeptide lactone from an Okinawan marine sponge, Theonella sp. (Theonellidae).

I. Kitagawa, M. Kobayashi, H. Shibuya, 1987, Chemical & pharmaceutical bulletin.

NEW CASSANE DITERPENES FROM CAESALPINIA BONDUC (FABACEAE)

H. Noguchi, I. Kitagawa, T. Kinoshita, 1996 .

Taxol and its related taxoids from the needles of Taxus sumatrana.

T. Mahmud, I. Kitagawa, M. Kobayashi, 1995, Chemical & pharmaceutical bulletin.

Indonesian Medicinal Plants. Part 20. Chemical Structures of Eleuthosides A (I), B (II), and C (III), Three New Aromatic Glucosides from the Bulbs of Eleutherine palmifolia (Iridaceae).

I. Kitagawa, S. Riswan, A. Nakamura, 1997 .

Indonesian Medicinal Plants. XX. Chemical Structures of Eleuthosides A, B, and C, Three New Aromatic Glucosides from the Bulbs of Eleutherine palmifolia (Iridaceae)

I. Kitagawa, S. Riswan, A. Nakamura, 1997 .

Chemical Studies of Chinese Licorice-Roots. II. Five New Flavonoid Constituents from the Roots of Glycyrrhiza aspera PALL. Collected in Xinjiang

Motomasa Kobayashi, I. Kitagawa, Jiali Ren, 1998 .

A TOTAL SYNTHESIS OF ARENASTATIN A, AN EXTREMELY POTENT CYTOTOXIC DEPSIPEPTIDE, FROM THE OKINAWAN MARINE SPONGE DYSIDEA ARENARIA

Motomasa Kobayashi, I. Kitagawa, M. Kurosu, 1994 .

Indonesian Medicinal Plants. Part 6. On the Chemical Constituents of the Bark of Picrasma javanica BL. (Simaroubaceae) from Flores Island. Absolute Stereostructures of Picrajavanins A (I) and B (II).

S. Aoki, N. Murakami, I. Kitagawa, 1994 .

Indonesian Medicinal Plants. VI. On the Chemical Constituents of the Bark of Picrasma javanica BL. (Simaroubaceae) from Flores Island. Absolute Stereostructures of Picrajavanins A and B

S. Aoki, N. Murakami, I. Kitagawa, 1993 .

Indonesian Medicinal Plants. XIII. Chemical Structures of Caesaldekarins c, d, and e, Three Additional Cassane-Type Furanoditerpenes from the Roots of Caesalpinia major (Fabaceae). Several Interesting Reaction Products of Caesaldekarin a Provided by N-Bromosuccinimide Treatment

S. Fujii, T. Mahmud, I. Kitagawa, 1996 .

Indonesian medicinal plants. VII. Seven new clerodane-type diterpenoids, peronemins A2, A3, B1, B2, B3, C1, and D1, from the leaves of Peronema canescens (Verbenaceae).

T. Mahmud, I. Kitagawa, P. Simanjuntak, 1994, Chemical & pharmaceutical bulletin.

Saponin and Sapogenol. XXV. Steroidal Saponins from the Starfish Acanthaster planci L. (Crown of Thorns). (1). Structures of Two Genuine Sapogenols, Thornasterol A and Thornasterol B, and Their Sulfates

I. Kitagawa, T. Sugawara, Motomasa Kobayashi, 1978 .

[Saponin and sapogenol. XLIV. Soyasaponin composition in soybeans of various origins and soyasaponin content in various organs of soybean. Structure of soyasaponin V from soybean hypocotyl].

I. Kitagawa, M. Yoshikawa, T. Taniyama, 1988, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

Marine natural products. XXXIII. Theonellapeptolide IId, a new tridecapeptide lactone from the Okinawan marine sponge Theonella swinhoei.

I. Kitagawa, S. Katayama, S. Ikegami, 1994, Chemical & pharmaceutical bulletin.

Marine Natural Products. Part 33. Theonellapeptolide IId, a New Tridecapeptide Lactone from the Okinawan Marine Sponge Theonella swinhoei.

I. Kitagawa, S. Katayama, S. Ikegami, 1995 .

Marine Natural Products. VII. Bioactive Triterpene-Oligoglycosides from the Sea Cucumber Holothuria leucospilota BRANDT (1). Structure of Holothurin B

Y. Kyōgoku, I. Kitagawa, H. Akutsu, 1981 .

Marine natural products. XXVI. Biologically active tridecapeptide lactones from the Okinawan marine sponge Theonella swinhoei (Theonellidae). (2). Structures of theonellapeptolides Ia, Ib, Ic, and Ie.

I. Kitagawa, M. Kobayashi, T. Momose, 1991, Chemical & pharmaceutical bulletin.

Marine natural products. XXV. Biologically active tridecapeptide lactones from the Okinawan marine sponge Theonella swinhoei (Theonellidae). Structure of theonellapeptolide Id

I. Kitagawa, H. Shibuya, N. Lee, 1991 .

Saponin and Sapogenol. XLI. : Reinvestigation of the Structures of Soyasapogenols A, B, and E, Oleanene-Sapogenols from Soybean. Structures of Soyasaponins I, II, and III

I. Kitagawa, M. Yoshikawa, T. Taniyama, 1988 .

Asernestioside C, a New Minor Saponin from the Roots of Astragalus ernestii COMB.; First Example of Negative Nuclear Overhauser Effect in the Saponins

Y. Tezuka, I. Kitagawa, T. Kikuchi, 1989 .

Suppression of the formation of sister chromatid exchanges by low concentrations of ginsenoside Rh2 in human blood lymphocytes.

T. Takeshita, I. Kitagawa, K. Morimoto, 1995, Cancer research.

Controlof PhenotypicExpressionof CulturedB16 MelanomaCells by Plant Glycosides1 OÃ"-Ã"

I. Kitagawa, H. Kohno, T. Matsuda, 1985 .

Effect of soya saponins on gold thioglucose (GTG)-induced obesity in mice.

I. Kitagawa, M. Yoshikawa, H. Okuda, 1986, International journal of obesity.

[Effect of crude drugs on experimental liver damages I. The active principle of Zedoariae Rhizoma (author's transl)].

I. Kitagawa, H. Matsuda, J. Yamahara, 1982, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan.

Metallothionein Induction and Hepatoprotection by Echinoside A and Sakuraso‐saponin

N. Itoh, Keiichi Tanaka, I. Kitagawa, 1997 .

Indonesian medicinal plants. XVII. Characterization of quassinoids from the stems of Quassia indica.

S. Nakagawa, T. Mayumi, T. Mahmud, 1996, Chemical & pharmaceutical bulletin.

STUDIES ON FUNGAL METABOLITES PART 31, ANTHRAQUINOID COLOURING MATTERS OF PENICILLIUM ISLANDICUM SOPP AND SOME OTHER FUNGI, (-)LUTEOSKYRIN, (-)RUBROSKYRIN, (+)RUGULOSIN AND THEIR RELATED COMPOUNDS

U. Sankawa, I. Kitagawa, Y. Ogihara, 1974 .