Isoflavan and related compounds from Dalbergia odorifera. I.

Abstract

Twenty-seven isoflavonoid monomer and dimer derivatives were obtained from the heartwood of Dalbergia odorifera T. CHEN (Leguminosae). The structure elucidation of twelve monomeric and five dimeric isoflavonoids is dealt with in this paper, affording novel examples of naturally occurring biisoflavonoids.