Aristololactams of Goniothalamus sesquipedalis wall. Revised structures of the 2-oxygenated aristololactams
作者:Sunil K. Talapatra、Dipankar Basu、Pratap Chattopadhyay、Bani Talapatra
DOI:10.1016/0031-9422(88)84116-5
日期:1988.1
structures of aristololactam CII, CIII, DII and DIII have been revised from the previously suggested 3-hydroxymethyl-2-methoxy derivatives and the 3-carboxy-2-hydroxy derivatives to the 2-hydroxymethyl-3-methoxy derivatives and the 2-carboxy-3-hydroxy derivatives respectively based on a careful analysis of their 13C NMR spectral data. Thus, goniopedaline is the only 2-oxygenated aristololactam known so