Studies on the Constituents of Medicinal and Related Plants in Sri Lanka. III. Novel Sesquilignans from Hedyotis lawsoniae

Abstract

Four new sesquilignans, named hedyotol-A, -B, -C, and -D, were isolated from the leaves of Hedyotis lawsoniae, along with four known lignans. The structures of these novel lignans were determined on the basis of spectroscopic and chemical evidence.