6a, 12a-Dehydro-β-toxicarol and Derricarpin, Two New Isoflavonoids, from the Roots of Derris oblonga BENTH

Abstract

A new dehydrorotenoid, 6a, 12a-dehydro-β-toxicarol, and a new pterocarpan, derricarpin, together with a known compound, 6a, 12a-dehydro-α-toxicarol, have been isolated from the roots of Derris oblonga. Their structures were determined on the basis of spectral and chemical evidence.