HECKENDORN, ROLAND, HELV. CHIM. ACTA, 70,(1987) N 8, 2118-2129
作者:HECKENDORN, ROLAND
DOI:——
日期:——
US4510141A
申请人:——
公开号:US4510141A
公开(公告)日:1985-04-09
Azomalonic Ester Syntheses. Part I. One-Step Synthesis of Triazolo[1,4]benzodiazepines from Azomalonates. Preparation of Novel Polyaza Tricycles from Diethyl (2-Chloroacetamido)malonate
作者:Roland Heckendorn
DOI:10.1002/hlca.19870700817
日期:1987.12.16
A useful synthetic principle for the preparation of N-heterocycles consists in the base treatment of azoma-lonates carrying electrophilic centers in the side chain. Thus, pharmacologically active triazolo[1,4]benzodiazepine-carboxamides can be prepared in one step from azomalonates derived from 2-aminobenzophenones and diethyl (2-chloroacetamido)malonate. The same malonate coupled with diazotized