Chemical constituents of the Combretaceae. Part II. Substituted phenanthrenes and 9,10-dihydrophenanthrenes and a substituted bibenzyl from the heartwood of Combretum molle
作者:R. M. Letcher、L. R. M. Nhamo、I. T. Gumiro
DOI:10.1039/p19720000206
日期:——
been isolated from the heartwood of Combretum molle and have been shown both by chemical and spectroscopic methods and by synthesis to be 4,7-dihydroxy-2,3,6-trimethoxyphenanthrene, 4,6,7-trihydroxy-2,3-dimethoxy- and 2,6-dihydroxy-3,4,7-trimethoxy-9,10-dihydrophenanthrene, and 3,4′-dihydroxy-4,5-dimethoxybibenzyl. The relevance of the latter compound to the biogenesis of the phenanthrenes and 9,10-dihydrophenanthrenes
从Combretum molle的心材中分离出四种新化合物,通过化学和光谱方法以及合成方法显示,它们分别是4,7-二羟基-2,3,6-三甲氧基菲,4,6,7-三羟基-2 1,3-二甲氧基-和2,6-二羟基-3,4,7-三甲氧基-9,10-二氢菲和3,4'-二羟基-4,5-二甲氧基双苄基。讨论了后一种化合物与菲和9,10-二氢菲的生物发生的相关性。现在,通过全合成已明确地确定了来自尖顶青虫的苯酚(C')为6,7-二羟基-2,3,4-三甲氧基菲。