A simple synthesis of the indole alkaloid bipolaramide and its derivatives.
作者:Masanori SOMEI、Toshiya KAWASAKI
DOI:10.1248/cpb.37.3426
日期:——
The first total synthesis of bipolaramide was achieved in 47% overall yield from (2S__-)-2, 3-dihydroindole-2-carboxylic acid in three steps, utilizing thallium chemistry. Some derivatives, with dihalogeno or dialkenyl substituents at the 4 and 11 positions of (6aS__--cis)-6a, 7, 13a, 14-tetrahydropyrazino[1, 2-a : 4, 5-a']diindole-6, 13-dione have also prepared.
利用铊化学反应,首次以 (2S__-)-2,3-二氢吲哚-2-羧酸为原料,分三步全合成了双极性酰胺,总收率为 47%。在 (6aS__-顺式)-6a, 7, 13a, 14-四氢吡嗪并[1, 2-a : 4, 5-a']二吲哚-6, 13-二酮的 4 和 11 位上具有二卤代或二烯基取代基的一些衍生物也已制备出来。