Studies on the constituents of the cultivated mulberry tree. I. Three new prenylflavones from the root bark of Morus alba L.

Abstract

From the benzene extract of the root bark of the cultivated mulberry tree (a variety of Morus alba L.), three new prenylflavones, morusin, cyclomorusin, and compound A were isolated. Their structures were shown to be I, II, and III, respectively.