(+)-Bicyclohumulenone, a novel sesquiterpene ketone of the humulane group from Plagiochila acanthophylla subsp. japonica(liverwort): X-ray crystal and molecular structure of the p-bromobenzoate derivative
Abstract
A novel sesquiterpene ketone, (+)-bicyclohumulenone (3), has been isolated from Plagiochila acanthophylla subsp. japonica, and its structure and absolute configuration have been determined by X-ray analysis of the triol mono p-bromobenzoate (6).