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51

Minor alkaloids from the seeds of Voacanga africana

D.E Pegnyemb, R.T Ghogomu, B.L Sondengam

Journal:

Year:

1999

Language:

english

File:

PDF, 63 KB

english, 1999

52

A convenient reduction of activated olefins by zinc?copper couple

Sondengam, B. Lucas, Fomum, Z. Tanee, Charles, Georges, Akam, T. Mac

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1983

Language:

english

File:

PDF, 349 KB

english, 1983

53

Limonoids of Teclea ouabanguiensis

Ayafor, Johnson Foyere, Sondengam, Beibam Lucas, Bilon, Anastasie Ngo, Connolly, Joseph Donald

Journal:

Journal of Natural Products

Year:

1986

Language:

english

File:

PDF, 275 KB

english, 1986

54

Limonoids from Clausena anisata

Ngadjui, Bonaventure Tchaleu, Ayafor, Johnson Foyere, Sondengam, Beibam Lucas, Connolly, Joseph Donald

Journal:

Journal of Natural Products

Year:

1989

Language:

english

File:

PDF, 283 KB

english, 1989

55

Bioactive Constituents from Boswellia p apyrifera

Atta-ur-Rahman,, Naz, Humera, Fadimatou,, Makhmoor, Talat, Yasin, Amsha, Fatima, Naheed, Ngounou, F. N., Kimbu, S. F., Sondengam, B. L., Choudhary, M. Iqbal

Journal:

Journal of Natural Products

Year:

2005

Language:

english

File:

PDF, 100 KB

english, 2005

56

Complete Structural Assignments of an Ergosterol Derivative from Entandrophragma utile

Garcia, Julian, Morin, Christophe, Nyasse, Barthélémy, Sondengam, Beibam-Lucas, Tchouankeu, Jean-Claude, Tsamo, Etienne

Journal:

Journal of Natural Products

Year:

1991

Language:

english

File:

PDF, 389 KB

english, 1991

57

A New Labdane Diterpenoid from the Seeds of Aframomum daniellii

Kimbu, Samuel F., Ngadjui, Bonaventure, Sondengam, Lucas B., Njimi, Thomas K., Connolly, Joseph D., Fakunle, Christopher O.

Journal:

Journal of Natural Products

Year:

1987

Language:

english

File:

PDF, 132 KB

english, 1987

58

Lophirones D and E: Two New Cleaved Biflavonoids from Lophira lanceolata

Tih, R. Ghogomu, Sondengam, B. L., Martin, M. T., Bodo, B.

Journal:

Journal of Natural Products

Year:

1989

Language:

english

File:

PDF, 285 KB

english, 1989

59

Calodenone, a New Isobiflavonoid from Ochna calodendron

Messanga, B. B., Tih, R. Ghogomu, Kimbu, S. F., Sondengam, B. L., Martin, M. T., Bodo, B.

Journal:

Journal of Natural Products

Year:

1992

Language:

english

File:

PDF, 227 KB

english, 1992

60

Minor Biflavonoids from Lophira a lata Leaves

Tih, Anastasie Ewola, Ghogomu, Raphael Tih, Sondengam, Beibam Lucas, Caux, Christelle, Bodo, Bernard

Journal:

Journal of Natural Products

Year:

2006

Language:

english

File:

PDF, 69 KB

english, 2006

61

Spathodol, a New Polyhydroxysterol from the Leaves of Spathodea campanulata

Ngouela, Silvere, Tsamo, Etienne, Sondengam, Beibam L., Connolly, Joseph D.

Journal:

Journal of Natural Products

Year:

1991

Language:

english

File:

PDF, 246 KB

english, 1991

62

Furoquinoline Alkaloids of Teclea ouabanguiensis

Ayafor, J. Foyere, Sondengam, B. Lucas, Bilon, A. Ngo, Tsamo, E., Kimbu, Samuel F., Okogun, Joseph I.

Journal:

Journal of Natural Products

Year:

1982

Language:

english

File:

PDF, 306 KB

english, 1982

63

Conrauinones A and B, Two New Isoflavones from Stem Bark of Millettia conraui 1

Fuendjiep, Victorine, Nkengfack, Augustin E., Fomum, Z. Tanee, Sondengam, Beibam L., Bodo, Bernard

Journal:

Journal of Natural Products

Year:

1998

Language:

english

File:

PDF, 98 KB

english, 1998

64

Bongosin: A New Chalcone-dimer from Lophira alata

Tih, A. Ewola, Tih, R. Ghogomu, Sondengam, B. L., Martin, M. T., Bodo, B.

Journal:

Journal of Natural Products

Year:

1990

Language:

english

File:

PDF, 199 KB

english, 1990

65

A New Peptide Alkaloid from Canthium anorldianum

Dongo, Etienne, Ayafor, Johnson Foyere, Sondengam, Beibam Lucas, Connolly, Joseph Donald

Journal:

Journal of Natural Products

Year:

1989

Language:

english

File:

PDF, 196 KB

english, 1989

66

Isolation and structural elucidation of a new pentaflavonoid from Ochna calodendron

Blaise Messanga, Bernard, Fon Kimbu, Samuel, Luc Sondengam, Beibam, Bodo, Bernard

Journal:

New Journal of Chemistry

Year:

2001

Language:

english

File:

PDF, 88 KB

english, 2001

67

Tetranortriterpenoids and related compounds. Part 25. Two 3,4-secotirucallane derivatives and 2′-hydroxyrohitukin from the bark of Guarea cedrata (Meliaceae)

Akinniyi, John A., Connolly, Joseph D., Rycroft, David S., Sondengam, B. Lucas, Ifeadike, N. Patience

Journal:

Canadian Journal of Chemistry

Year:

1980

Language:

english

File:

PDF, 221 KB

english, 1980

68

Calodenin C: A New Guibourtinidol-(4α→8)-afzelechin from Ochna calodendron

Messanga, Bernard, Ghogomu, Raphaël, Sondengam, Beibam, Martin, Marie-Thérèse, Blond, Alain, Brouard, Jean-Paul, Bodo, Bernard

Journal:

Year:

1998

Language:

english

File:

PDF, 147 KB

english, 1998

69

Veprisinium Salt, A Novel Antibacterial Quaternary Alkaloid from Vepris louisii

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

Journal:

Year:

1982

Language:

english

File:

PDF, 362 KB

english, 1982

70

Extractives from Bignoniaceae: Constituents of the Stem Bark ofSpathodea campanulata

S. Ngouela, E. Tsamo, B. Sondengam

Year:

1988

Language:

english

File:

PDF, 58 KB

english, 1988

71

Chemical Constituents of the Stem Heart Wood of Stereospermum kunthianum

Ghogomu-Tih, R., Nyasse, B., Tsamo, E., Sondengam, B.

Journal:

Year:

1986

Language:

english

File:

PDF, 25 KB

english, 1986

72

Further Triterpenoids of Musanga cecropioides : The Structure of Cecropic Acid

Lontsi, D., Sondengam, B., Ayafor, J., Tsoupras, M., Tabacchi, R.

Journal:

Year:

1990

Language:

english

File:

PDF, 286 KB

english, 1990

73

ChemInform Abstract: TETRANORTRITERPENOIDS AND RELATED COMPOUNDS. PART 26. TECLEANIN, A POSSIBLE PRECURSOR OF LIMONIN, AND OTHER NEW TETRANORTRITERPENOIDS FROM TECLEA GRANDIFOLIA ENGL. (RUTACEAE)

AYAFOR, J. F., SONDENGAM, B. L., CONNOLLY, J. D., RYCROFT, D. S., OKOGUN, J. I.

Journal:

Chemischer Informationsdienst

Year:

1981

File:

PDF, 108 KB

1981

74

ChemInform Abstract: MELIACINS(LIMONOIDS). MINOR CONSTITUENTS OF KHAYA ANTHOTHECA. REDUCTION OF THE MELIACINS WITH ZINC-COPPER COUPLE

EKONG, DONALD E. U., OKOGUN, JOSEPH I., SONDENGAM, B. LUCAS

Journal:

Chemischer Informationsdienst

Year:

1976

File:

PDF, 225 KB

1976

75

ChemInform Abstract: THE STRUCTURE OF A LABDANE DIALDEHYDE FROM AFROMOMUM DANIELLII (ZINGIBERACEAE)

KIMBU, S. F., NJIMI, T. K., SONDENGAM, V. L., AKINNIYI, J. A., CONNOLLY, J. D.

Journal:

Chemischer Informationsdienst

Year:

1979

File:

PDF, 123 KB

1979

76

ChemInform Abstract: BIS(ALKOXYMETHYL) AMINES- PREPARATION AND REDUCTION, SELECTIVE N-DIMETHYLATION OF PRIMARY AMINES

KAPNANG, H., CHARLES, G., SONDENGAM, B. L., HEMO, J. H.

Journal:

Chemischer Informationsdienst

Year:

1977

File:

PDF, 134 KB

1977

77

Activité Catalytique En Oxydation Des Zéolithes D'Éléments De transition

J. Rouchaud, L. Sondengam, J. J. Fripiat

Journal:

Bulletin des Sociétés Chimiques Belges

Year:

1968

File:

PDF, 310 KB

1968

78

ChemInform Abstract: Cecropioic Acid, a Pentacyclic Triterpene from Musanga cecropioides.

D. LONTSI, B. L. SONDENGAM, M. T. MARTIN, B. BODO

Journal:

Year:

1998

File:

PDF, 26 KB

1998

79

ChemInform Abstract: Crotonadiol, a Labdane Diterpenoid from the Stem Bark of Croton zambesicus.

Bonaventure T. Ngadjui, Gabriel G. Folefoc, Felix Keumedjio, Etienne Dongo, Beiban L. Sondengam, Joseph D. Connolly

Journal:

Year:

1999

File:

PDF, 28 KB

1999

80

ChemInform Abstract: New Isoflavones from Ceiba pentandra.

F. N. Ngounou, A. L. Meli, D. Lontsi, B. L. Sondengam, Atta-Ur-Rahman Atta-Ur-Rahman, M. Iqbal Choudhary, Shahid Malik, Farzana Akhtar

Journal:

Year:

2000

File:

PDF, 24 KB

2000

81

Coupling of two diazotized 3-aminothieno[3,4-c]coumarins with aromatic amines

Emmanuel Sopbué Fondjo, Joseph Tsemeugne, Beibam Luc Sondengam, Thomas Oppenlaender, Hippolyte Kamdem Wabo, Pierre Tane, Joseph D. Connolly, Wim Dehaen, Taoufik Rohand, Haruhisa Kikuchi, Yoshiteru Osh

Journal:

Journal of Heterocyclic Chemistry

Year:

2011

Language:

english

File:

PDF, 137 KB

english, 2011

82

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

J.Foyere Ayafor, B.Lucas Sondengam, Samuel F. Kimbu, Etienne Tsamo, Joseph D. Connolly

Journal:

Year:

1982

Language:

english

File:

PDF, 210 KB

english, 1982

83

A substituted cinnamoyl ester from Cleistopholis staudtii

Pierre Tane, J. Foyere Ayafor, B. Luc Sondengam

Journal:

Year:

1988

Language:

english

File:

PDF, 205 KB

english, 1988

84

Chromone glycosides from Schumanniophyton magnificum

Pierre Tane, Johnson F. Ayafor, B. Luc Sondengam, Joseph D. Connolly

Journal:

Year:

1990

Language:

english

File:

PDF, 391 KB

english, 1990

85

Musancropic acids A and B: A-ring contracted triterpenes from Musanga cecropioides

D. Lontsi, B.L. Sondengam, M.T. Martin, B. Bodo

Journal:

Year:

1991

Language:

english

File:

PDF, 442 KB

english, 1991

86

Two dinorditerpenoids from Ricinodendron heudelotii

Samuel F. Kimbu, Felix Keumedjio, Lucas B. Sondengam, Joseph D. Connolly

Journal:

Year:

1991

Language:

english

File:

PDF, 256 KB

english, 1991

87

Geranyl coumarins from Clausena anisata

Bonaventure T. Ngadjui, S.M. Mouncherou, J.F. Ayafor, B.L. Sondengam, F. Tillequint

Journal:

Year:

1991

Language:

english

File:

PDF, 318 KB

english, 1991

88

Musangicic acid, a triterpenoid constituent of Musanga cecropioides

David Lontsi, Beibam-Lucas Sondengam, Marie-Therese Martin, Bernard Bodo

Journal:

Year:

1992

Language:

english

File:

PDF, 350 KB

english, 1992

89

Lophiroflavans B and C, tetraflavonoids of Lophira alata

Anastasie Tih, Marie-Thérèse Martin, Raphael Ghogomu Tih, Isabelle Vuidepot, Beibam-Lucas Sondengam, Bernard Bodo

Journal:

Year:

1992

Language:

english

File:

PDF, 489 KB

english, 1992

90

An ergostane derivative from the bark of Entandrophragma utile

Jean-Claude Tchouankeu, Barthelemy Nyasse, Etienne Tsamo, Beibam L. Sondengam, Christophe Morin

Journal:

Year:

1992

Language:

english

File:

PDF, 203 KB

english, 1992

91

Bangangxanthone A and B, two xanthones from the stem bark of Garcinia polyantha Oliv.

A. Meli Lannang, J. Komguem, F. Ngounou Ngninzeko, J. Gustave Tangmouo, D. Lontsi, Asma Ajaz, M. Iqbal Choudhary, Rosa Ranjit, Krishna P. Devkota, B. Luc Sondengam

Journal:

Year:

2005

Language:

english

File:

PDF, 134 KB

english, 2005

92

Five labdane diterpenoids from the seeds of Aframomum zambesiacum

Marguerite Kenmogne, Elise Prost, Dominique Harakat, Marie-José Jacquier, Michel Frédérich, Lucas B. Sondengam, Monique Zèches, Pierre Waffo-Téguo

Journal:

Year:

2006

Language:

english

File:

PDF, 138 KB

english, 2006

93

Clerodane diterpenoids from Microglossa angolensis

Mathieu Tene, Pierre Tane, Beiban L. Sondengam, Joseph D. Connolly

Journal:

Year:

2005

Language:

english

File:

PDF, 110 KB

english, 2005

94

New isoflavones from Ceiba pentandra

F.N Ngounou, A.L Meli, D Lontsi, B.L Sondengam, Atta-Ur-Rahman, M.Iqbal Choudhary, Shahid Malik, Farzana Akhtar

Journal:

Year:

2000

Language:

english

File:

PDF, 153 KB

english, 2000

95

Sesquiterpene lactone and friedelane derivative from Drypetes molunduana

J Wandji, J.D Wansi, V Fuendjiep, E Dagne, D.A Mulholland, F Tillequin, Z.T Fomum, B.L Sondengam, B.C Nkeh, D Njamen

Journal:

Year:

2000

Language:

english

File:

PDF, 167 KB

english, 2000

96

A new piperine-type amide from Piper guineense

B.L. Sondengam, S.F. Kimbu, Joseph D. Connolly

Journal:

Year:

1977

Language:

english

File:

PDF, 221 KB

english, 1977

97

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

Bonaventure T. Ngadjui, Johnson F. Ayafor, Beibam L. Sondengam, Joseph D. Connolly, David S. Rycroft, François Tillequin

Journal:

Year:

1993

Language:

english

File:

PDF, 279 KB

english, 1993

98

Quinolone and carbazole alkaloids from Clausena anisata

Bonaventure Tchaleu Ngadjui, J.Foyere Ayafor, Beibam L. Sondengam, Joseph D. Connolly

Journal:

Year:

1989

Language:

english

File:

PDF, 269 KB

english, 1989

99

Atomasins A and B, tetranortriterpenoids from the bark of Entandrophragma candollei

Jean C. Tchouankeu, Etienne Tsamo, Beibam L. Sondengam, Joseph D. Connolly

Journal:

Year:

1989

Language:

english

File:

PDF, 259 KB

english, 1989

100

Conrauinones C and D, two isoflavones from stem bark of Millettia conraui

Victorine Fuendjiep, Augustin E. Nkengfack, Z.Tanee Fomum, B.L. Sondengam, B. Bodo

Journal:

Year:

1998

Language:

english

File:

PDF, 217 KB

english, 1998