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ERYTHROSUAVINE, A NEW DITERPENIC ALKALOID FROM ERYTHROPHLEUM SUAVEOLENS (GUILL. & PERR.) BRENAN


R. N. Manfouo
D. Lontsi*
F. N. Ngounou
B. T. Ngadjui
B. L. Sondengam

Abstract

From the chloroform extract of the stem bark of Erythrophleum suaveolens (Guill. & Perr.) Brenan, a new diterpenic alkaloid (Erythrosuavine) has been isolated and characterized as N-acetyl-9,11-dehydro-6-ketocassaidinyl-3-acetate 1. The structure of the above compound was elucidated from one and two-dimensional 1H and 13C NMR spectra as well as from 1H-1H COSY, HMQC and HMBC correlations.



KEY WORDS: N-acetyl–9,11-dehydro–6-ketocassaidinyl-3-acetate, Erythrophleum suaveolens, Erythrosuavine


Bull. Chem. Soc. Ethiop. 2005, 19(1), 69-74.

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eISSN: 1726-801X
print ISSN: 1011-3924