Chemical constituents of Millettia eythrocalyx leaves

Abstract

Chemical investigation of the constituents of Millettia erythrocalyx leaves led to the isolation of seven flavonoid compounds. The structure determinations of these compounds were accomplished by spectroscopic analyses (UV, IR, MS and NMR) and comparison with previously reported data of known compounds. These isolates were identified as a new furanoflavone, namely 3',5'-dimethoxy[2",3":7,8]furano- flavone, and the known compounds 3',4'-methylenedioxy-7-methoxyflavone, pongaglabrone, gamatin, milletenin C, millettocalyxin A and millettocalyxin C.