The bark of Croton cajucara afforded two novel clerodane-type furano-d
iterpenes, t-cajucarin B and sacacarin, in addition to the previously
isolated nor-clerodane diterpenes t-crotonin, t-dehydrocrotonin, t-caj
ucarin B and cajucarinolide. The triterpene acetyl aleuritolic acid, w
as also obtained. Structure elucidation was achieved by spectroscopic
measurements including 2D-NMR experiments. (C) 1998 Elsevier Science L
td. All rights reserved.