A Benzofuranoid and Two Clerodane Diterpenoids from Pulicaria wightiana

摘要

Methyl 5-formyl-1-benzofuran-6-carboxylate (1) and the two clerodane diterpenes, methyl 6-oxocleroda-3,13-dien-15,16-olid 18-oate (2) and 2 beta-(2-methylbutanoyl)cleroda-3,13-dien-15,16-olid-18-oic acid (3), together with 15 known compunds, were isolated from the aerial parts of Pulicaria wightiana. The structures of the new compunds 1, 2, and 3 were established by spectroscopy (mainly 1D- and 2D-NMR) methods.