Studies on the syntheses of condensed indole-4,7-diones. II. Synthesis of pyrrolo[1,2-a]indole-5,8-dione derivatives.
作者:MASAO OKAMOTO、SHUNSAKU OHTA
DOI:10.1248/cpb.28.1071
日期:——
Methyl 1, 2-dihydro-3H-pyrrolo [1, 2-a] benzo [f] indole-5, 10-dione-11-carboxylate (9) was synthesized starting from 2, 3-dichloronaphthoquinone (2) through a five-step procedure including a novel cyclization reaction to methyl 1-acetyl-1, 2, 3, 4-tetrahydro-6H-naphtho-[2, 3-b] azocine-5, 7, 12-trione-6-carboxylate (13).
甲基1,2-二氢-3H-吡咯[1,2-a]苯并[f]吲哚-5,10-二酮-11-羧酸酯(9),是通过从2,3-二氯萘醌(2)出发,经过一个包含新颖环化反应的五步骤过程合成的,该过程最终得到甲基1-乙酰基-1,2,3,4-四氢-6H-萘并[2,3-b]氮杂环庚三酮-5,7,12-三酮-6-羧酸酯(13)。