Two biflavonoids from Ouratea nigroviolacea

Josephine Ngo Mbing; Cécile Enguehard-Gueiffier; Alex de Théodore Atchadé; Hassan Allouchi; Joseph Gangoué-Piéboji; Joseph Tanyi Mbafor; Raphael Ghogomu Tih; Jacques Pothier; Dieudonné Emmanuel Pegnyemb; Alain Gueiffier

doi:10.1016/j.phytochem.2006.07.027

Two biflavonoids from Ouratea nigroviolacea

Phytochemistry. 2006 Dec;67(24):2666-70. doi: 10.1016/j.phytochem.2006.07.027. Epub 2006 Sep 6.

Authors

Josephine Ngo Mbing¹, Cécile Enguehard-Gueiffier, Alex de Théodore Atchadé, Hassan Allouchi, Joseph Gangoué-Piéboji, Joseph Tanyi Mbafor, Raphael Ghogomu Tih, Jacques Pothier, Dieudonné Emmanuel Pegnyemb, Alain Gueiffier

Affiliation

¹ Department of Organic Chemistry, Faculty of Science, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon.

PMID: 16950483
DOI: 10.1016/j.phytochem.2006.07.027

Abstract

The leaves of Ouratea nigroviolacea (Ochnaceae) afforded two biflavonoids, ouratine A and B together with agathisflavone and stigmasterol. The biflavonoids were characterized as 4'-O-methylated apigeninyl-(I-6, II-8)-4'-O-methylatedapigenin and 4'-O-methylated apigeninyl-(I-6, II-8) apigenin by spectral and chemical transformation studies.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Biflavonoids / chemistry*
Biflavonoids / isolation & purification
Molecular Structure
Ochnaceae / chemistry*
Plant Extracts / chemistry
Plant Extracts / isolation & purification
X-Ray Diffraction

Substances

Biflavonoids
Plant Extracts
ouratine A
ouratine B