Isoflavonoids. I. Some new constituents of pterocarpus indicus heartwood

Abstract

A new examination of the heartwood of Pterocarpus indicus has revealed the presence of formononetin, isoliquiritigenin, (-)-p-hydroxyhydratropic acid, and a new 2-arylbenzofuran. The previously reported angolensin and pterocarpin were also isolated but no homopterocarpin was detected. © 1964 CSIRO. All rights reserved.