J. Ayafor

发表

Isolation and identification of three new phenolic furoquinoline alkaloids from Teclea verdoorniana Exell & Mendonça (Rutaceae)

J. Okogun, J. Ayafor, 1982 .

Anti-plasmodial sesquiterpenoids from the African Reneilmia cincinnata.

M. Iwu, B. M. Schuster, A. Tsopmo, 1999, Phytochemistry.

Vernoguinosterol and vernoguinoside, trypanocidal stigmastane derivatives from Vernonia guineensis (Asteraceae).

A. Tsopmo, A. Tchinda, O. Sterner, 2002, Phytochemistry.

Novel Onchocerca volvulus filaricides from Carapa procera, Polyalthia suaveolens and Pachypodanthium staudtii.

M. Evehe, S. Kimbu, V. Titanji, 1990, Acta Leidensia.

New antioxidant and antimicrobial ellagic acid derivatives from Pteleopsis hylodendron.

Atta-ur-rahman, M. Choudhary, S. Malik, 2001, Planta medica.

Khayalactone, a novel limonoid from Khaya grandifoliola

O. Sterner, J. D. Connolly, J. Ayafor, 1998 .

Picrotoximaesin, A Novel Picrotoxane Sesquiterpenoid from the Berries of Maesobotrya Floribunda

F. Tillequin, J. D. Connolly, L. Farrugia, 1996 .

Lophocarpin and 21β-Hydroxylophocarpin, Two New 30-Norfriedelane Triterpenes from Caloncoba Lophocarpa

J. D. Connolly, J. Ayafor, M. Tchuendem, 1996 .

4,5-Epoxide-1,6-dimethyl-1-vinylhexyl p-coumarate: a novel monoterpene derivative from Cleistopholis patens.

J. Nuzillard, A. Tsopmo, O. Sterner, 2004 .

Diterpenoids from Neoboutonia glabrescens (Euphorbiaceae).

A. Tsopmo, A. Tchinda, J. D. Connolly, 2003, Phytochemistry.

Three labdane diterpenoids from Aframomum sceptrum (Zingiberaceae).

Godfred A. Ayimele, A. Tsopmo, J. D. Connolly, 2002, Phytochemistry.

Novel bioactive diterpenoids from Aframomum aulacocarpos.

F. Tillequin, H. Anke, B. Nyassé, 1994, Journal of natural products.

Diarylheptanoids from Myrica arborea.

A. Tsopmo, O. Sterner, P. Tane, 2000, Phytochemistry.

Partially-acetylated dodecanyl tri- and tetra-rhamnoside derivatives from Cleistopholis glauca (Annonaceae)

G. Massiot, J. D. Connolly, C. Lavaud, 1988 .

Synthesis of Veprisine Dimers and the Formation of a Novel Cyclic Tetramer from Precocene I

J. D. Connolly, D. Rycroft, B. Sondengam, 1992 .

Araliopdimerines A, B, and C, dimeric quinolone alkaloids from the bark of Araliopsis tabouensis

F. Tillequin, J. D. Connolly, M. Koch, 1988 .

Biogenetic-type synthesis of vepridimerines A–D

J. D. Connolly, D. Rycroft, B. Sondengam, 1985 .

Quinoline and indolopyridoquinazoline alkaloids from Vepris louisii

B. Ngadjui, B. Sondengam, J. Ayafor, 1982 .

Dehydration of hydroxy-hemiterpenoid quinoline alkaloids and synthesis of paraensidimerines

A. Skaltsounis, M. Koch, J. Ayafor, 1989 .

A substituted cinnamoyl ester from Cleistopholis staudtii

P. Tane, B. Sondengam, J. Ayafor, 1988 .

Limonoids from Clausena anisata

J. D. Connolly, B. Sondengam, J. Ayafor, 1989 .

Quinolone and carbazole alkaloids from Clausena anisata

J. D. Connolly, B. Sondengam, J. Ayafor, 1989 .

Coumarins from Clausena anisata

J. D. Connolly, B. Sondengam, J. Ayafor, 1989 .

Urea derivatives from Pentadiplandra brazzeana.

A. Tsopmo, O. Sterner, J. Ayafor, 1999, Journal of natural products.

Chromone glycosides from Schumanniophyton magnificum.

J. D. Connolly, P. Tane, B. Sondengam, 1990, Phytochemistry.

A new diels-alder-type adduct flavonoid from Dorstenia barteri.

A. Tsopmo, O. Sterner, J. Ayafor, 1999, Journal of natural products.

The structures of vepridimerines A-D, four new dimeric prenylated quinolone alkaloids from Vepris lousii and Oricia renieri (Rutaceae)

M. F. Grundon, N. Brown, S. Khalid, 1982 .

Senegalensein, A Novel Prenylated Flavanone from Erythrina senegalensis

J. Wandji, Z. Fomum, J. Ayafor, 1987 .

Sigmoidin D: a new prenylated flavanone from Erythrina sigmoidea.

Z. Fomum, M. Tempesta, J. Mbafor, 1986, Journal of natural products.

Erythrisenegalone, a prenylated-flavanone from Erythrina senegalensis

J. Wandji, Z. Fomum, J. Ayafor, 1985 .

Erythrinasinate, an ester from three Erythrina species

J. Wandji, Z. Fomum, A. E. Nkengfack, 1986 .

TITLE: Drug Development and Conservation of Biodiversity in West and Central Africa: Performance of Neurochemical and Radio Receptor Assays of Plant Extracts Drug Discovery for the Central Nervous System

M. Iwu, A. Tsopmo, O. Sterner, 2007 .

A Novel Natural Product Compound Enhances cAMP-Regulated Chloride Conductance of Cells Expressing CFTRΔF508

Chi P. Ndi, A. Tsopmo, A. deCarvalho, 2002, Molecular medicine.

The use of two-dimensional long-range δC/δH correlation in conjunction with the one-dimensional proton-coupled 13C NMR spectrum in the structural elucidation of ekeberginine, a new carbazole alkaloid from ekebergia senegalensis (meliaceae)

J. D. Connolly, D. Rycroft, B. Sondengam, 1985 .

Aframodial and other bioactive diterpenoids from Aframomum species

F. Tillequin, H. Anke, J. Ayafor, 1994 .

Oppositin and 5-O-methylhoslundin, pyrone-substituted flavonoids of Hoslundia opposita

F. Tillequin, J. D. Connolly, D. Rycroft, 1993 .

Hoslundin, hoslundal, and hoslunddiol: three new flavonoids from the twigs of hoslundia opposita (lamiaceae)

J. D. Connolly, D. Rycroft, B. Sondengam, 1991 .

Screening of some African medicinal plants for antiulcerogenic activity: Part 1

J. Ayafor, P. V. Tan, Clarisse K. Njimi, 1997 .

Chemical studies on the Cecropiaceae: a novel A-ring seco triterpene from Musanga cecropioides

B. Sondengam, J. Ayafor, D. Lontsi, 1989 .

Nauclefolinine: a new alkaloid from the roots of nauclea latifolia

J. Nuzillard, J. D. Connolly, J. Ayafor, 2004 .

Further Triterpenoids of Musanga cecropioides: The Structure of Cecropic Acid.

B. Sondengam, J. Ayafor, D. Lontsi, 1990, Planta medica.

Nkolbisine, a New Furoquinoline Alkaloid, and 7-Deacetylazadirone From Teclea verdoorniana

J. Okogun, J. Ayafor, 1982 .

Veprisinium salt, a novel antibacterial quaternary alkaloid from Vepris louisii.

B. Sondengam, J. Ayafor, B. T. Ngadjui, 1982, Planta medica.

Veprisilone, a prenylated 2-quinolone, and limonin from Vepris louisii

B. Ngadjui, B. Sondengam, J. Ayafor, 1982 .

Oriciopsin, a new ring-D cleaved tetranortriterpenoid, and flindersiamine from Oriciopsis glaberrima

J. D. Connolly, S. Kimbu, B. Sondengam, 1982 .

Tetranortriterpenoids and related compounds. Part 26. Tecleanin, a possible precursor of limonin, and other new tetranortriterpenoids from Teclea grandifolia Engl. (Rutaceae)

J. D. Connolly, J. Okogun, D. Rycroft, 1981 .

The structure of veprisinium salt

B. Sondengam, J. Ayafor, B. T. Ngadjui, 1981 .

Veprisine and N-methylpreskimmianine: Novel 2-quinolones from

B. Sondengam, J. Ayafor, B. T. Ngadjui, 1980 .

Tecleaverdoornine: a new C-prenylated phenylated furoquinoline

J. Okogun, J. Ayafor, 1977 .

Hosloppin, a New Pyrone-Substituted Flavonoid from Hoslundia opposita

A. Tsopmo, J. D. Connolly, J. Ayafor, 1995 .

Cecropiacic acid, a new pentacyclic A-ring seco triterpenoid from Musanga cecropioides

J. D. Connolly, B. Sondengam, J. Ayafor, 1987 .

Stigmastane derivatives and isovaleryl sucrose esters from Vernonia guineensis (Asteraceae).

A. Tchinda, J. D. Connolly, P. Tane, 2003, Phytochemistry.

Efficient Isolation of a Large Amount of 20-Hydroxyecdysone from Vitex madiensis (Verbenaceae) by Droplet Counter-Current Chromatography

I. Kubo, J. Ayafor, A. Matsumoto, 1984 .

Trypanocidal diarylheptanoids from Aframomum letestuianum.

M. Iwu, A. Tsopmo, O. Sterner, 2003, Journal of natural products.

Pachypophyllin and pachypostaudins A and B: three Bisnorlignans from Pachypodanthium staudtii

B. Sondengam, J. Ayafor, D. Lontsi, 1989 .

Erythrina studies. Part 2. Structures of three novel prenylated antibacterial flavanones, sigmoidins A–C, from Erythrina sigmoidea Hua

Z. Fomum, J. Mbafor, J. Ayafor, 1986 .

2,3-Dihydroauriculatin, a new prenylated isoflavanone from Erythrina senegalensis. Application of the selective inept technique.

J. Wandji, Z. Fomum, M. Tempesta, 1986, Journal of natural products.

In vitro antifilarial activity of some medicinal plants.

J. Comley, V. Titanji, J. Ayafor, 1990, Acta Leidensia.

A norbislabdane and other labdanes from Aframomum sulcatum

Godfred A. Ayimele, A. Tsopmo, O. Sterner, 2002 .

A Norbislabdane and Other Labdanes from Aframomum sulcatum.

Godfred A. Ayimele, A. Tsopmo, O. Sterner, 2002 .

3-acetoxy-5,7-dihydroxy-4'-methoxyflavanone, a new cytotoxic dihydroflavonol from Aframomum hanburyi K. Schum

A. Tsopmo, F. Tillequin, H. Anke, 1996 .

Cyclodione, an unsymmetrical dimeric diterpene from Cylicodiscus gabunensis

O. Sterner, P. Tane, K. Bergquist, 1995 .

New friedelane triterpenes from Lepidobotrys staudtii

A. Tsopmo, O. Sterner, P. Tane, 1996 .

Cyclodione, an Unsymmetrical Dimeric Diterpene from Cylicodiscus gabunensis.

O. Sterner, P. Tane, K. Bergquist, 1996 .

Geranylated flavonoids from Dorstenia poinsettifolia

A. Tsopmo, O. Sterner, J. Ayafor, 1998 .

Picrotoximaesin: A New Picrotoxane Sesquiterpene From Maesa kamerunensis

F. Tillequin, J. D. Connolly, B. Ngadjui, 1993 .

Prenylated coumarins from the leaves of Clausena anisata

J. D. Connolly, B. Sondengam, J. Ayafor, 1989 .

Limonoids from Carapa grandiflora (Meliaceae).

J. D. Connolly, D. Rycroft, S. Kimbu, 1994 .

Carapolide A, A novel hexanortriterpenoid and carapolides b and c, novel tetranortriterpenoids from the seeds of carapa procera (meliaceae)

D. Rycroft, S. Kimbu, B. Sondengam, 1984 .

Carapolides d, e and f, novel tetranortriterpenoids from the seeds of carapa grandiflora (meliaceae)

J. D. Connolly, D. Rycroft, S. Kimbu, 1984 .