申请人:Hoffmann-La Roche Inc.
公开号:US04280957A1
公开(公告)日:1981-07-28
Novel Imidazobenzodiazepines and their analogs are useful as anticonvulsants, muscle relaxant, anxiolytic and sedative agents. Preferred compounds of this class belong to the imidazo[1,5-a][1,4]diazepine series which may have a very wide variety of organic substituents. An especially preferred genus included within the purview of the invention encompasses a compound of the formula ##STR1## wherein R.sub.1 is hydrogen and lower alkyl preferably methyl; R.sub.3 and R.sub.5 are hydrogen; R.sub.4 is hydrogen, nitro and halogen, most preferably, chlorine, and in a most preferred embodiment when positioned on the fused benzo portion of the imidazobenzodiazepine is in the 8-position thereof, R.sub.6 is phenyl or halo, nitro, or lower alkyl-substituted phenyl, preferably, halo, with fluorine being the preferred halogen, the substituted fluoro being positioned in the 2-position of the phenyl moiety and R.sub.2 is hydrogen and lower alkyl.
新型咪唑苯二氮杂环己烯和它们的类似物可用作抗癫痫药、肌肉松弛剂、抗焦虑药和镇静剂。该类的优选化合物属于咪唑并[1,5-a][1,4]二氮杂环己烯系列,可能具有非常广泛的有机取代基。在本发明的范围内尤其优选的一类包括式中的化合物,其中 R.sub.1 为氢和较低的烷基,最好是甲基;R.sub.3 和 R.sub.5 为氢;R.sub.4 为氢、硝基和卤素,最好是氯,在最优选的实施方式中,当位于咪唑苯二氮杂环的融合苯部位的 8-位时,R.sub.6 为苯基或卤素、硝基或较低烷基取代的苯基,最好是卤素,取代的氟在苯基中的 2-位,R.sub.2 为氢和较低的烷基。