Synthesis of a Benzo[5,6]cyclohepta[1,2-b]thiophene and Thieno[3,2-c]benzazepine Derivatives
作者:Toshiyuki Kohara、Hiroshi Tanaka、Koreichi Kimura、Tetsuya Fujimoto、Iwao Yamamoto、Masafumi Arita
DOI:10.1055/s-2002-20033
日期:——
series of 2-methyl-4-(4-methylpiperazin-1-yl)-10H-benzo[5,6]cyclohepta[1,2-b]thiophene (5) and 2-methyl-4-(4-methylpiperazin-1-yl)thieno[3,2-c][1]benzazepine derivatives 6b-f have been synthesized from 2-methylthiophene and phthalic anhydride. Preparation of the key intermediate 2-methyl-4,5-dihydro-10H-benzo[5,6]cyclohepta[1,2-b]thiophene-4-one (12) and 2-methylthieno[3,2-c][1]benzazepine-4(5H),10-dione
2-甲基-4-(4-甲基哌嗪-1-基)-10H-苯并[5,6]环庚[1,2-b]噻吩(5)和2-甲基-4-(4-)新系列甲基哌嗪-1-基)噻吩并[3,2-c][1]苯并氮杂衍生物6b-f是由2-甲基噻吩和邻苯二甲酸酐合成的。关键中间体2-甲基-4,5-二氢-10H-苯并[5,6]环庚[1,2-b]噻吩-4-酮(12)和2-甲基噻吩[3,2-c]的制备[1]苯并氮杂-4(5H),10-二酮(16)分别通过苯乙酸11的分子内脱水和异氰酸酯14的路易斯酸相关环化进行。