ISOLATION AND STRUCTURES OF HEDYOTISOL-A, -B, AND -C NOVEL DILIGNANS FROM HEDYOTIS LAWSONIAE

Abstract

Three new dilignans, hedyotisol-A (1a), -B (2a), and -C (3a), were isolated from the leaves of Hedyotis lawsoniae and their structures were examined. These compounds are constructed from a syringaresinol unit and two phenylpropane units, and they are stereoisomeric with each other.