申请人:Janssen Pharmaceutica N.V.
公开号:US03998834A1
公开(公告)日:1976-12-21
Novel N-(4-piperidinyl)-N-phenylamides and -carbamates having very potent analgesic activity, methods of preparing same and useful intermediates therefor.
新型具有非常强的镇痛活性的N-(4-哌啶基)-N-苯基酰胺和-氨基甲酸酯,其制备方法及有用的中间体。