Tuberosin, a new pterocarpan from Pueraria tuberosa DC

Abstract

Tuberosin, a new pterocarpan isolated from Pueraria tuberosa DC. has been identified as 6a,13a-dihydro-10,10-dimethyl-6H,10H-furo[3,2-c:4,5-g′]bis[1]benzopyran-3,6a-diol (III). 7-Methoxy-6-(7-methoxychrornan-3-yl)-2,2-dimethylchroman (X) has been synthesized and shown to be identical with a degradation product from tuberosin.