Y. Imakura

发表

Breaks in double-strand DNA by Cu(II) complexes of etoposide (VP-16) and its derivatives, as evaluated by S1 nuclease treatment.

K. Lee, R. Tawa, M. Takami, 1997, Biological & pharmaceutical bulletin.

Bitter phenyl propanoid glycosides from campsis chinensis

Y. Imakura, Shigeru Kobayashi, Akira Mima, 1985 .

Binding affinity of Cu(II)-VP-16 (etoposide) complex and its analogues to DNA and hydroxyl radical generation during DNA strand breaks.

K. Lee, R. Tawa, M. Takami, 1998, Bioorganic & medicinal chemistry.

Anti-inflammatory agents III: Structure-activity relationships of brusatol and related quassinoids.

K. Lee, I. Hall, Y. Imakura, 1983, Journal of pharmaceutical sciences.

Antitumor agents XLII: Comparison of antileukemic activity of helenalin, brusatol, and bruceantin and their esters on different strains of P-388 lymphocytic leukemic cells.

K. Lee, I. Hall, T. Ibuka, 1981, Journal of pharmaceutical sciences.

Antitumor agents. XXXIV: Mechanism of action of bruceoside A and brusatol on nucleic acid metabolism of P-388 lymphocytic leukemia cells.

K. Lee, I. Hall, Y. Imakura, 1979, Journal of pharmaceutical sciences.

Four stilbenes from Salacia lehmbachii

K. Kawazoe, Y. Takaishi, Y. Imakura, 1997 .

Antitumor sesquiterpene lactones from Helenium microcephalum: Isolation of mexicanin-E and structural characterization of microhelenin-B and -C

A. McPhail, Y. Imakura, K. Onan, 1977 .

Sesquiterpene alkaloids from Tripterygium hypoglaucum and Tripterygium wilfordii: a new class of potent anti-HIV agents.

K. Lee, K. Lee, D. Li, 2000, Journal of natural products.

Antitumor agents XVII; Structure and stereochemistry of microhelenin-A, a new antitumor sesquiterpene lactone from Helenium microcephalum.

Y. Imakura, K. H. Lee, D. Sims, 1976, Journal of pharmaceutical sciences.

Structure and stereochemistry of microlenin, a novel antitumour dimeric sesquiterpene lactone from Helenium microcephalum; X-ray crystal structure

K. Lee, Y. Imakura, D. Sims, 1976 .

ELECANACIN, A NOVEL NEW NAPHTHOQUINONE FROM THE BULB OF ELEUTHERINE AMERICANA

K. Lee, Y. Imakura, K. Bastow, 1997 .

Tripfordines A-C, sesquiterpene pyridine alkaloids from Tripterygium wilfordii, and structure anti-HIV activity relationships of Tripterygium alkaloids.

K. Lee, Donglei Yu, Y. Takaishi, 2006, Journal of natural products.

Antitumor agents. 100. Inhibition of human DNA topoisomerase II by cytotoxic ether and ester derivatives of podophyllotoxin and alpha-peltatin.

Y. Cheng, K. Lee, M. Haruna, 1989, Journal of medicinal chemistry.

Elecanacin, a Novel New Naphthoquinone from the Bulb of Eleutherine americana.

K. Lee, Y. Imakura, K. Bastow, 1998 .

Three β-coumaranones from Sparaxis tricolor

K. Kawazoe, Y. Takaishi, Y. Imakura, 1998 .

Podophyllotoxin analogs: effects on DNA topoisomerase II, tubulin polymerization, human tumor KB cells, and their VP-16-resistant variants.

Y. Cheng, K. Lee, M. Haruna, 1989, Molecular pharmacology.

Reactions using micellar system : Photocycloadditions of acenaphthylene with acrylonitrile and methyl acrylate.

Y. Imakura, Y. Morita, Yushin Nakamura, 1978 .

REACTIONS USING A MICELLAR SYSTEM: PHOTOCYCLOADDITIONS OF ACENAPHTHYLENE WITH ACRYLONITRILE AND METHYL ACRYLATE

Y. Nakamura, Y. Imakura, Y. Morita, 1979 .

STEREOCHEMISTRY OF PHOTOCYCLOADDITION PRODUCTS OF ACENAPHTHYLENE WITH ACRYLONITRILE AND METHYL ACRYLATE

Y. Imakura, Y. Morita, Yushin Nakamura, 1978 .

Reactions using micellar system: photochemical dimerization of acenaphthylene

Y. Imakura, Y. Morita, Takeshi Kato, 1977 .

Antitumor agents LXIII: the effects of microlenin on nucleic acid and protein syntheses of Ehrlich ascites cells.

K. Lee, I. Hall, Y. Imakura, 1983, Journal of pharmaceutical sciences.

Studies on Constituents of Bignoniaceae Plants. IV. Isolation and Structure of a New Iridoid Glucoside, Campsiside, from Campsis chinensis

Y. Imakura, M. Kihara, Shigeru Kobayashi, 1985 .

Iridoid glucosides from Campsis chinensis

Y. Imakura, M. Kido, Shigeru Kobayashi, 1984 .

Alkaloidal constituents of Crinum latifolium and Crinum bulbispermum (Amaryllidaceae)

Y. Imakura, T. Shingu, Z. Taira, 1984 .

Isolation of O-demethyllycoramine from bulbs of Lycoris radiata Herb.

K. Yuasa, Y. Imakura, T. Shingu, 1980 .

Effect of alkaloids isolated from Amaryllidaceae on herpes simplex virus.

S. Kobayashi, Y. Imakura, M. Kihara, 1989, Research in virology.

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 .

Acid degradation products of qinghaosu and their structure-activity relationships

W. Milhous, K. Lee, Y. Imakura, 1990 .

Antitumor agents XXXVI: Structural elucidation of sesquiterpene lactones microhelenins-A, B, and C, microlenin acetate, and plenolin from Helenium microcephalum.

M. Itoigawa, K. Lee, I. Hall, 1980, Journal of pharmaceutical sciences.

Antitumor agents XXVIII: Structural elucidation of the novel antitumor sesquiterpene lactone, microlenin, from Helenium microcephalum.

K. Lee, I. Hall, Y. Imakura, 1978, Journal of pharmaceutical sciences.

Antitumor agents. XXXV: Effects of brusatol, bruceoside A, and bruceantin on P-388 lymphocytic leukemia cell respiration.

K. Lee, I. Hall, Y. Imakura, 1979, Journal of pharmaceutical sciences.

Terpenoids and aromatic compounds from Daphne oleoides ssp. oleoides

E. Yeşilada, Y. Takaishi, G. Honda, 1999 .

Iridoid glucosides from Lamium amplexicaule.

Y. Imakura, M. Kihara, Shigeru Kobayashi, 1986 .

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 .

Site-specific DNA cleavage by Cu(II) complexes of podophyllotoxin derivatives.

K. Lee, R. Tawa, Y. Imakura, 1994, Biochemical pharmacology.

Antimalarial agents, 4. Synthesis of a brusatol analog and biological activity of brusatol-related compounds.

K. Lee, Y. Imakura, S. Tani, 1987, Journal of natural products.

Antitumor agents, 107. New cytotoxic 4-alkylamino analogues of 4'-demethyl-epipodophyllotoxin as inhibitors of human DNA topoisomerase II.

Y. Cheng, K. Lee, M. Haruna, 1989, Journal of natural products.

Metal- and photo-induced cleavage of DNA by podophyllotoxin, etoposide, and their related compounds.

H. Sakurai, K. Lee, Y. Imakura, 1991, Molecular pharmacology.

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 .

Regioselective cleavage reaction of the aromatic methylenedioxy ring. VI. Synthesis of phenothiazine analogues by using the cleavage reaction with sodium methoxide-thiols in dimethyl sulfoxide and evaluation of their biological activities.

H. Sakurai, K. Tajima, Y. Imakura, 1994, Chemical and pharmaceutical bulletin.

Regioselective Cleavage Reaction of the Aromatic Methylenedioxy Ring. Part 6. Synthesis of Phenothiazine Analogues by Using the Cleavage Reaction with Sodium Methoxide-Thiols in Dimethyl Sulfoxide and Evaluation of Their Biological Activities.

H. Sakurai, K. Tajima, Y. Imakura, 2010 .

Antitumor agents, 99. Synthetic ring C aromatized podophyllotoxin analogues as potential inhibitors of human DNA topoisomerase II.

K. Lee, Y. Imakura, S. Beers, 1988, Journal of natural products.

Insect Antifeedant and Growth Inhibitory Activity of Forty-Six Quassinoids on Two Species of Agricultural Pests

K. D. Wing, K. Lee, H. Kiyokawa, 1987 .

Antimalarial artemisinin analogs : synthesis of 2,3-desethano-12-deoxoartemisinin-related compounds

K. Lee, J. Sakakibara, Y. Imakura, 1990 .

Synthesis of desethanoqinghaosu, a novel analogue of the antimalarial qinghaosu

A. McPhail, J. Koyama, K. Lee, 1988 .

Effects of CpG methylation to double stranded DNA breaks by Cu(II)-podophyllotoxin derivative complexes

K. Lee, R. Tawa, M. Takami, 1997 .

Antitumor agents. 33. Isolation and structural elucidation of bruceoside -A and -B, novel antileukemic quassinoid glycosides, and brucein -D and -E from Brucea javanica

K. Lee, I. Hall, Y. Imakura, 1979 .

Cleavage of the Methylenedioxy Ring. III. Cleavage with Sodium Benzyloxide in Dimethyl Sulfoxide

K. Okimoto, Y. Imakura, Shigeru Kobayashi, 1982 .

CLEAVAGE OF THE METHYLENEDIOXY RING. III. CLEAVAGE WITH SODIUM BENZYLOXIDE IN N DIMETHYL SULFOXIDE

K. Okimoto, Y. Imakura, Shigeru Kobayashi, 1982 .

Alkaloidal Constituents of Hymenocallis rotata HERB. (Amaryllidaceae)

Y. Imakura, T. Shingu, M. Kihara, 1987 .