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1

Crassiflorone, a new naphthoquinone from Diospyros crassiflora (Hien)

Jean Gustave Tangmouo, Alain Lannang Meli, Justin Komguem, Victor Kuete, Fernande Ngninzeko Ngounou, David Lontsi, Veronique Penlap Beng, M. Iqbal Choudhary, Beban Luc Sondengam

Journal:

Tetrahedron Letters

Year:

2006

Language:

english

File:

PDF, 107 KB

english, 2006

2

Structure of lophirones B and C, biflavonoids from the bark of Lophira lanceolata

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

Journal:

Year:

1989

Language:

english

File:

PDF, 278 KB

english, 1989

3

Biflavonoids from Ochna afzelii

Dieudonné Emmanuel Pegnyemb, Raphael Ghogomu Tih, Beibam Lucas Sondengam, Alain Blond, Bernard Bodo

Journal:

Year:

2001

Language:

english

File:

PDF, 125 KB

english, 2001

4

Lophirone A, A biflavonoid with unusual skeleton from Lophira lanceolata.

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

Journal:

Tetrahedron Letters

Year:

1987

Language:

english

File:

PDF, 119 KB

english, 1987

5

In vitro anti-prostate cancer and ex vivo antiangiogenic activity of Vernonia guineensis Benth. (Asteraceae) tuber extracts

Ngeh J. Toyang, Hippolyte K. Wabo, Eugene N. Ateh, Harry Davis, Pierre Tane, Samuel F. Kimbu, Luc B. Sondengam, Joseph Bryant

Journal:

Journal of Ethnopharmacology

Year:

2012

Language:

english

File:

PDF, 629 KB

english, 2012

6

Toxicity, antimicrobial and anthelmintic activities of Vernonia guineensis Benth. (Asteraceae) crude extracts

Ngeh J. Toyang, Eugene N. Ateh, Jennifer Keiser, Mireille Vargas, Horacio Bach, Pierre Tane, Luc B. Sondengam, Harry Davis, Joseph Bryant, Rob Verpoorte

Journal:

Journal of Ethnopharmacology

Year:

2012

Language:

english

File:

PDF, 397 KB

english, 2012

7

In vivo antiprostate tumor potential of Vernonia guineensis Benth. (Asteraceae) tuber extract (VGDE) and the cytotoxicity of its major compound pentaisovaleryl sucrose

Toyang, Ngeh J., Ateh, Eugene N., Davis, Harry, Tane, Pierre, Sondengam, Luc B., Bryant, Joseph, Verpoorte, Rob

Journal:

Journal of Ethnopharmacology

Year:

2013

Language:

english

File:

PDF, 628 KB

english, 2013

8

Cytotoxic sesquiterpene lactones from the leaves of Vernonia guineensis Benth. (Asteraceae)

Toyang, Ngeh J., Wabo, Hippolyte K., Ateh, Eugene N., Davis, Harry, Tane, Pierre, Sondengam, Luc B., Bryant, Joseph, Verpoorte, Rob

Journal:

Journal of Ethnopharmacology

Year:

2013

Language:

english

File:

PDF, 384 KB

english, 2013

9

Sélectivité Catalytique Dans L'oxydation du P-xylène

J. Rouchaud, L. Sondengam

Journal:

Bulletin des Sociétés Chimiques Belges

Year:

1969

File:

PDF, 230 KB

1969

10

ChemInform Abstract: The Millettia of Cameroon. Part 9. Conrauinones C and D, Two Isoflavones from Stem Bark of Millettia conraui.

V. FUENDJIEP, A. E. NKENGFACK, Z. T. FOMUM, B. L. SONDENGAM, B. BODO

Journal:

Year:

1998

File:

PDF, 27 KB

1998

11

Modified Berberine and Protoberberines from Enantia chlorantha as Potential Inhibitors of Trypanosoma brucei

B. Nyasse, E. Nkwengoua, B. Sondengam, C. Denier, M. Willson

Journal:

Year:

2002

File:

PDF, 26 KB

2002

12

Two Biflavonoids from Ouratea flava Stem Bark

Josephine Ngo Mbing, Dieudonne Emmanuel Pegnyemb, Raphael Ghogomu Tih, Beibam Lucas Sondengam, Alain Blond, Bernard Bodo

Journal:

Year:

2003

File:

PDF, 64 KB

2003

13

Flavonoids of Ochna afzelii.

Dieudonne Emmanuel Pegnyemb, Raphael Ghogomu Tih, Beibam Lucas Sondengam, Alain Blond, Bernard Bodo

Journal:

Year:

2004

File:

PDF, 81 KB

2004

14

Proceranone, a new tetranortriterpenoid from Carapa procera

B.L. Sondengam, C.S. Kamga, S.F. Kimbu, J.D. Connolly

Journal:

Year:

1981

Language:

english

File:

PDF, 164 KB

english, 1981

15

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

J.Foyere Ayafor, B.Lucas Sondengam, B.Tchaleu Ngadjui

Journal:

Year:

1982

Language:

english

File:

PDF, 206 KB

english, 1982

16

Mandassidione and other sesquiterpenic ketones from Cyperus articulatus

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

Journal:

Year:

1988

Language:

english

File:

PDF, 287 KB

english, 1988

17

A pentacyclic triterpene diacid from Myrianthus arboreus

F.N. Ngounou, D. Lontsi, B.L. Sondengam

Journal:

Year:

1988

Language:

english

File:

PDF, 243 KB

english, 1988

18

Isolation of α-corymbolol, an eudesmane sesquiterpene diol from Cyperus articulatus

B. Nyasse, R.Ghogomu tih, B.L. Sondengam, M.T. Martin, B. Bodo

Journal:

Year:

1988

Language:

english

File:

PDF, 224 KB

english, 1988

19

Myrianthinic acid: A new triterpenoid from Myrianthus arboreus

F. Ngninzeko Ngounou, David Lontsi, B.Lucas Sondengam

Journal:

Year:

1988

Language:

english

File:

PDF, 267 KB

english, 1988

20

Coumarins from Clausena anisata

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

Journal:

Year:

1989

Language:

english

File:

PDF, 408 KB

english, 1989

21

Pachypophyllin and pachypostaudins A and B: three bisnorlignans from pachypodanthium staudtii

Bonaventure T. Ngadjui, David Lontsi, Johnson Foyere Ayafor, B.Lucas Sondengam

Journal:

Year:

1989

Language:

english

File:

PDF, 432 KB

english, 1989

22

Structure of the chalcone dimers lophirone F, and H from Lophira lanceolata stem bark

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

Journal:

Year:

1990

Language:

english

File:

PDF, 438 KB

english, 1990

23

Spathodic acid: A triterpene acid from the stem bark of Spathodea campanulata

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

Journal:

Year:

1990

Language:

english

File:

PDF, 304 KB

english, 1990

24

Seco-ring-A-triterpenoids from the rootwood of Musanga cecropioides

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

Journal:

Year:

1991

Language:

english

File:

PDF, 354 KB

english, 1991

25

Tetraflavonoids of Lophira alata

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

Journal:

Year:

1992

Language:

english

File:

PDF, 388 KB

english, 1992

26

Pentacyclic triterpenes from Myrianthus liberecus

Azefack Leon Tapondjou, Ngninzeko Fernande Ngounou, David Lontsi, Beibam Lucas Sondengam, Marie-Therese Martin, Bernard Bodo

Journal:

Year:

1995

Language:

english

File:

PDF, 325 KB

english, 1995

27

Xanthones from Garcinia smeathmannii (Oliver) and their antimicrobial activity

Justin Komguem, A.L. Meli, R.N. Manfouo, David Lontsi, F.N. Ngounou, V. Kuete, Hippolyte W. Kamdem, Pierre Tane, Bonaventure T. Ngadjui, Beiban L. Sondengam, Joseph D. Connolly

Journal:

Year:

2005

Language:

english

File:

PDF, 117 KB

english, 2005

28

Antimicrobial biflavonoids from the aerial parts of Ouratea sulcata

Dieudonné Emmanuel Pegnyemb, Josephine Ngo Mbing, Alex de Théodore Atchadé, Raphael Ghogomu Tih, Beiban Lucas Sondengam, Alain Blond, Bernard Bodo

Journal:

Year:

2005

Language:

english

File:

PDF, 126 KB

english, 2005

29

Biflavonoids from Ochna calodendron

Blaise Messanga, Raphael Ghogomu Tih, Beibam-Lucas Sondengam, Marie-Thérèse Martin, Bernard Bodo

Journal:

Year:

1994

Language:

english

File:

PDF, 372 KB

english, 1994

30

Proceranolide, a novel tetranortriterpenoid from Carapa procera

B.L. Sondengam, C.S. Kamga, J.D. Connolly

Journal:

Year:

1980

Language:

english

File:

PDF, 73 KB

english, 1980

31

Triflavonoids of Ochna calodendron

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

Journal:

Year:

2002

Language:

english

File:

PDF, 112 KB

english, 2002

32

Two biflavonoids from Ouratea flava stem bark

Joséphine Ngo Mbing, Dieudonné Emmanuel Pegnyemb, Raphael Ghogomu Tih, Beibam Lucas Sondengam, Alain Blond, Bernard Bodo

Journal:

Year:

2003

Language:

english

File:

PDF, 220 KB

english, 2003

33

Flavonoids of Ochna afzelii

Dieudonné Emmanuel Pegnyemb, Raphael Ghogomu Tih, Beibam Lucas Sondengam, Alain Blond, Bernard Bodo

Journal:

Year:

2003

Language:

english

File:

PDF, 183 KB

english, 2003

34

Cecropioic acid, a pentacyclic triterpene from Musanga cecropioides

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

Journal:

Year:

1998

Language:

english

File:

PDF, 324 KB

english, 1998

35

Crotonadiol, a labdane diterpenoid from the stem barkof Croton zambesicus

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

Journal:

Year:

1999

Language:

english

File:

PDF, 198 KB

english, 1999

36

Limonoids from Carapa grandiflora (meliaceae)

J. Foyere Ayafor, Samuel F. Kimbu, Bonaventure T. Ngadjui, Thomas M. Akam, Etienne Dongo, B.Lucas Sondengam, Joseph D. Connolly, David S. Rycroft

Journal:

Year:

1994

Language:

english

File:

PDF, 707 KB

english, 1994

37

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

T. Bonaventure Ngadjui, J. Foyere Ayafor, B. Lucas Sondengam, Joseph D. Connolly, David S. Rycroft, Sami A. Khalid, Peter G. Waterman, Norman M.D. Brown, Michael F. Grundon, V.N. Ramachandran

Journal:

Tetrahedron Letters

Year:

1982

Language:

english

File:

PDF, 216 KB

english, 1982

38

Biogenetic-type synthesis of vepridimerines A–D

J.Foyere Ayafor, B.Lucas Sondengam, Joseph D. Connolly, David S. Rycroft

Journal:

Tetrahedron Letters

Year:

1985

Language:

english

File:

PDF, 225 KB

english, 1985

39

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

David Lontsi, B.Lucas Sondengam, J.Foyere Ayafor, Joseph D. Connolly

Journal:

Tetrahedron Letters

Year:

1987

Language:

english

File:

PDF, 217 KB

english, 1987

40

Entilins A and B, two novel heptanortriterpenoid derivatives from entandrophragma utile (meliaceae): Structural elucidation using 2d nmr long-range δC/δH correlation experiments

Jean C. Tchouankeu, Etienne Tsamo, B.Lucas Sondengam, Joseph D. Connolly, David S. Rycroft

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 267 KB

english, 1990

41

Structures of isombamichalcone and lophirochalcone, bi- and tetra-flavonoids from lophira lanceolata

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

Journal:

Tetrahedron Letters

Year:

1989

Language:

english

File:

PDF, 239 KB

english, 1989

42

Bis (alcoxymethyl) amines : preparation et reduction; N-dimethylation selective d'amines primaires

H. Kapnang, G. Charles, B.L. Sondengam, J.Hentchoya Hemo

Journal:

Tetrahedron Letters

Year:

1977

File:

PDF, 209 KB

1977

43

Evodulone, a new tetranortriterpenoid from carapa procera

B.L. Sondengam, C.S. Kamga, J.D. Connolly

Journal:

Tetrahedron Letters

Year:

1979

Language:

english

File:

PDF, 109 KB

english, 1979

44

Sur une nouvelle methode de methylation des amines primaires et secondaires

B.L. Sondengam, J.Hentchoya Hémo, G. Charles

Journal:

Tetrahedron Letters

Year:

1973

File:

PDF, 126 KB

1973

45

Quinoline and indolopyridoquinazoline alkaloids from Vepris louisii

J.Foyere Ayafor, B.Lucas Sondengam, B.Tchaleu Ngadjui

Journal:

Year:

1982

Language:

english

File:

PDF, 473 KB

english, 1982

46

Arboreic acid: a pentacyclic triterpenoid from Myrianthus arboreus

F.Ngninzeko Ngounou, David Lontsi, J.Foyere Ayafor, B.Lucas Sondengam

Journal:

Year:

1987

Language:

english

File:

PDF, 266 KB

english, 1987

47

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

Bonaventure T. Ngadjui, Johnson F. Ayafor, A.E.Ngo Bilon, B.Lucas Sondengam, Joseph D. Connolly, David S. Rycroft

Journal:

Year:

1992

Language:

english

File:

PDF, 761 KB

english, 1992

48

Veprisine and N-methylpreskimmianine: Novel 2-quinolones from Vepris louisii

J.Foyere Ayafor, B.Lucas Sondengam, Bonaventure Ngadjui

Journal:

Tetrahedron Letters

Year:

1980

Language:

english

File:

PDF, 135 KB

english, 1980

49

7,8-Dihydrobenzofuranones from Ouratea reticulata

Salvador S Elo Manga, Bernard B Messanga, Beibam L Sondengam

Journal:

Year:

2001

Language:

english

File:

PDF, 53 KB

english, 2001

50

Aporphine alkaloids from Enantia chlorantha

Pascal Wafo, Barthelemy Nyasse, Catherine Fontaine, Beibam L. Sondengam

Journal:

Year:

1999

Language:

english

File:

PDF, 72 KB

english, 1999