A new proanthocyanidin, 4'-O-methylgallocatechin- (4 alpha --> 8)-4'-O-meth
ylgallocatechin of the rare 4'-methoxy derivatives of prodelphinidin, was i
solated from the stem bark of Stryphnodendron adstringens. The structure wa
s determined on the basis of spectroscopic data including 1-D (H-1, C-13) a
nd 2-D NMR (H-1-H-1-COSY, HSQC, HMBC) experiments of its peracetylated deri
vative. (C) 1999 Elsevier Science Ltd. All rights reserved.