The methanol extract of fruits of Trichilia claussenii yielded the new
gamma-lactones, (2R,3S, -4-methyl-2-(13'-phenyl-1'-n-tridecyl)-butano
lide, (2R, 3S, y-4-methyl-2-(11'-phenyl-1'-n-undecyl)-butanolide, (2R,
3:S, xy-4-methyl-2-(1'-n-hexadec-7'(Z)-enyl)-butanolide and (2R,3S, -h
ydroxy-4-methyl-2-(1'-n-tetradecyl)-bustanolide. The structures of the
isolated compounds were determined on the basis of spectral analysis.
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