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Dive into the research topics where Bernard Blaise Messanga is active.

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Featured researches published by Bernard Blaise Messanga.


New Journal of Chemistry | 2001

Isolation and structural elucidation of a new pentaflavonoid from Ochna calodendron

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

A new pentaflavonoid, ochnachalcone, was isolated from the stem bark of Ochna calodendron and its structure elucidated by spectroscopic means including HMQC, HMBC and ROESY experiments.


Fitoterapia | 2001

7,8-Dihydrobenzofuranones from Ouratea reticulata

Salvador S Elo Manga; Bernard Blaise Messanga; Beibam Lucas Sondengam

Two known 7,8-dihydrobenzofuranones, aquilegiolide (1) and menisdaurilide (2), were isolated from Ouratea reticulata root bark.


Fitoterapia | 2001

Two new fatty acid glucosides from the root bark of Ochna calodendron.

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

Two new fatty acid glucosides, (3E,8Z)-8-carboxy-1-(O-beta-D-glucopyranosyl)-2,6-dihydroxytritriaconta-3,8-diene (1) and (8Z)-8-carboxy-1-(O-beta-D-glucopyranosyl)-3,4-epoxy-2,6-dihydroxytritriacont-8-ene (2), have been isolated from the root bark of Ochna calodendron and their structures elucidated by extensive two-dimensional NMR methods including HMQC, HMBC and NOESY experiments.


Phytochemistry | 2001

Further isoflavonoid metabolites from Millettia griffoniana (Bail)

Emmanuel Yankep; J. Tanyi Mbafor; Z. Tanee Fomum; Christoph Steinbeck; Bernard Blaise Messanga; Barthelemy Nyasse; H. Budzikiewicz; Christof Lenz; Hans Schmickler


Planta Medica | 1998

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

Bernard Blaise Messanga; Raphael T. Ghogomu; Beibam Luc Sondengam; Marie-Thérèse Martin; Alain Blond; Jean-Paul Brouard; Bernard Bodo


Phytochemistry | 2002

Triflavonoids of Ochna calodendron

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


Canadian Journal of Chemistry | 2000

Calodendroside A: a taxifolin diglucoside from the stem bark of Ochna calodendron

Bernard Blaise Messanga; Beibam Luc Sondengam; Bernard Bodo


Fitoterapia | 1998

Lanceolin C, a new nitrile glycoside from Lophira alata

Bernard Blaise Messanga; R. T. Ghogomu; Beibam Luc Sondengam; A. Blond; Bernard Bodo


Fitoterapia | 1998

Isoflavonoids from the stem heartwood of Ochna calodendron

Bernard Blaise Messanga; Dieudonné Emmanuel Pegnyemb; R. T. Ghogomu; Beibam Luc Sondengam


ChemInform | 2010

The Millettia of Cameroon. Part 11. Further Isoflavonoid Metabolites from Millettia griffoniana (Bail).

Emmanuel Yankep; J. Tanyi Mbafor; Z. Tanee Fomum; Christoph Steinbeck; Bernard Blaise Messanga; Barthelemy Nyasse; H. Budzikiewicz; Christof Lenz; Hans Schmickler

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Bernard Bodo

Centre national de la recherche scientifique

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R. T. Ghogomu

University of Yaoundé I

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Z. Tanee Fomum

University of Yaoundé I

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Christoph Steinbeck

European Bioinformatics Institute

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