Four linear acetogenins, donhepocin (1), 34-epi-donhepocin (1'), donhe
xocin and donbutocin, have been isolated from the roots of Goniothalam
us donnniensis. 1 and 1', isolated as an epimeric pair, contain a rare
gamma-hydroxymethyl-gamma-lactone. Their structures have been establi
shed on the basis of spectral and chemical evidence. (C) 1998 Elsevier
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