Trifluoromethylthio (and sulfonyl) derivatives of cyproheptadine analogs
申请人:Merck & Co., Inc.
公开号:US04031222A1
公开(公告)日:1977-06-21
Cyproheptadine derivatives substituted with a trifluoromethylthio or trifluoromethylsulfonyl group in one of the benzo rings and having a hydroxyalkyl or cycloalkylalkyl group on the piperidine nitrogen are potent antipsychotic agents, with a low propensity to induce extrapyramidal side effects that are experienced with most major tranquilizers. The tranquilizing activity is predominantly in the levorotatory enantiomers, whereas the dextrorotatory enantiomers have anticholinergic activity. Each enantiomer is useful as a source of the other by racemization. The novel compounds are prepared by treatment of the corresponding iodo or bromo compound with bis(trifluoromethylthio)mercury and copper powder.