PROCESS FOR PREPARING BENZAZEPINE COMPOUNDS OR SALTS THEREOF
申请人:Torisawa Yasuhiro
公开号:US20120226034A1
公开(公告)日:2012-09-06
This invention provides a process for preparing benzazepine compounds of the formula (1):
wherein X
1
is a halogen atom, R
1
and R
2
are a lower alkyl group, or salts thereof as well as intermediate benzoic acid compounds in high yield and high purity on industrial scale, which are useful as an intermediate for preparing a pharmaceutically active 2,3,4,5-tetrahydro-1H-1-benzazepine compound having vasopressin antagonistic activity.