Phenyl piperazine derivatives having antiagressive activity
申请人:DUPHAR INTERNATIONAL RESEARCH B.V
公开号:EP0048044A1
公开(公告)日:1982-03-24
It has been found that the group of new phenyl piperazine derivatives of formula 3 of the formula sheet and the salts thereof have a strong antiagressive activity. The compounds can be prepared in a manner known for analogous compounds and be processed to the usual compositions.
Oxidation of α-amidoaryl sulfones with m-chloroperoxybenzoic acid under mild conditions readily provides the corresponding imides in satisfactory yields. The overall process probably involves formation of an N-acyliminium ion intermediate, which by attack of the peroxyacid anion generates the final imidoderivatives.