作者:Michael J. E. Hewlins、Anthony H. Jackson、Ana-M. Oliveira-Campos、Patrick V. R. Shannon
DOI:10.1039/p19810002906
日期:——
routes and condensed with hexane-2,5-dione to give 1,4-dimethyl-5,6,7-trimethoxycarbazole. Formylation of the latter gave a mixture including the 3-formyl derivative which was converted into 8,9,10-trimethoxyellipticine by the modified Pomerantz–Fritsch annelation procedure.
通过三个独立的途径合成4,5,6-三甲氧基吲哚,并与己烷-2,5-二酮缩合,得到1,4-二甲基-5,6,7-三甲氧基咔唑。后者的甲酰化得到包含3-甲酰基衍生物的混合物,通过改良的Pomerantz-Fritsch脱核方法将其转化为8,9,10-三甲氧基玫瑰树碱。