申请人:Kali-Chemie Pharma GmbH
公开号:US04170649A1
公开(公告)日:1979-10-09
New 1,4-benzodiazepine derivatives are disclosed which are substituted in 2-position by cyanomethylene or carbamoylmethylene and have the formula ##STR1## wherein R.sub.1 represents hydrogen, halogen, or nitro, R.sub.2 represents hydrogen or lower alkyl, R.sub.3 represents phenyl which may be substituted by halogen or CF.sub.3, and R.sub.4 represents cyano or carbamoyl. The compounds exhibit tranquilizing activities. The cyanomethylene-compounds are prepared by oxidizing corresponding cyanomethyl compounds with Cr-VI-oxide in an acidic reaction medium. The cyanomethylene-group can subsequently be hydrolyzed into the carbamoylmethylene group.
新的1,4-苯二氮䓬啉衍生物被揭示,它们在2-位被氰甲亚甲基或羰胺亚甲基取代,并具有以下结构式:其中R.sub.1代表氢、卤素或硝基,R.sub.2代表氢或较低的烷基,R.sub.3代表苯基,可能被卤素或三氟甲基取代,R.sub.4代表氰基或羰胺基。这些化合物表现出镇静活性。氰甲亚甲基化合物通过在酸性反应介质中使用Cr-VI-氧化物氧化相应的氰甲基化合物制备。氰甲亚甲基基团随后可以水解为羰胺亚甲基基团。