Chemical Studies on the Constituents of the Thymelaeaceous Plants. V. Structure of a New Biflavonoid, Daphnodorin D from the Root of Daphne odora THUNB.

Abstract

A new biflavonoid, daphnodorin D (5) was isolated from the root of Daphne odora THUNB. Daphnodorin D was confirmed to be a mixture of atropisomers at C-8, C-3"linkage of 5, 7, 4'-trihydroxyflavan〓 5", 7", 4'''-trihydroxyflavone by chemical and spectroscopic means.