作者:Graham Bodwell、Ian Pottie、Penchal Nandaluru
DOI:10.1055/s-0030-1261203
日期:2011.9
Urolithin M7 was synthesized from 2-hydroxy-4-methoxybenzaldehyde in 8 steps and 48% overall yield. The key step was an inverse electron demand Diels-Alder (IEDDA) reaction between diene 10 and the enamine (7) derived from dimethoxyacetaldehyde and pyrrolidine, which generated the 6H-dibenzo[b,d]pyran-6-one skeleton.
尿石素 M7 是由 2-hydroxy-4-methoxybenzaldehyde 经过 8 个步骤合成的,总收率为 48%。关键步骤是二烯 10 与由二甲氧基乙醛和吡咯烷衍生出的烯胺(7)发生反电子需求 Diels-Alder(IEDDA)反应,生成 6H-二苯并[b,d]吡喃-6-酮骨架。