申请人:Hoffmann-La Roche Inc.
公开号:US04363762A1
公开(公告)日:1982-12-14
Imidazodiazepine derivatives of the formula ##STR1## wherein A together with the two carbon atoms denoted as .alpha. and .beta. is selected from the group consisting of: ##STR2## the dotted line represents the double bond present in groups (a) and (b), D is >C.dbd.O or >C.dbd.S, R.sup.1 is selected from the group consisting of cyano, lower alkanoyl and a group of the formula --COOR.sup.4, R.sup.4 is selected from the group consisting of methyl, ethyl, isopropyl and 2-hydroxyethyl, R.sup.5 is selected from the group consisting of hydrogen, trifluoromethyl and halogen and R.sup.6 is selected from the group consisting of hydrogen, trifluoromethyl, halogen and lower alkyl and either R.sup.2 is hydrogen and R.sup.3 is hydrogen or lower alkyl or R.sup.2 and R.sup.3 together are trimethylene or propenylene and the carbon atom denoted as .gamma. has the S- or R,S-configuration, and pharmaceutically acceptable salts thereof are presented and have utility for antagonising the central-depressant, muscle relaxant, ataxic, blood pressure-lowering and respiratory-depressant properties of 1,4-benzodiazepines which have tranquillising activity. They can be used, for example, as antidotes in the case of intoxications in which excessive intake of 1,4-benzodiazepines which have tranquillising participates, or for shortening an anaesthesia induced by such 1,4-benzodiazepines. They can also be used for suppressing the activities on the central nervous system of 1,4-benzodiazepines used in other fields of indication, for example of schistosomicidally-active 1,4-benzodiazepines such as (+)-5-(o-chlorophenyl)-1,3-dihydro-3-methyl-7-nitro-2H-1,4-benzodiazepin-2 -one. Also presented are processes to produce the imidazodiazepine derivatives and intermediates therefor.
本发明涉及式(I)的咪唑二氮杂苯衍生物,其中A与表示为α和β的两个碳原子一起从以下组中选择:##STR2##其中虚线表示(a)和(b)中存在的双键,D是>C.dbd.O或>C.dbd.S,R.sup.1从以下组中选择:氰基,低烷酰基和公式--COOR.sup.4的基团,R.sup.4从甲基,乙基,异丙基和2-羟乙基的组中选择,R.sup.5从氢,三氟甲基和卤素的组中选择,R.sup.6从氢,三氟甲基,卤素和低烷基的组中选择,且R.sup.2为氢且R.sup.3为氢或低烷基,或者R.sup.2和R.sup.3一起为三亚甲基或丙烯亚甲基,表示为γ的碳原子具有S-或R,S-构型。还提供了其药学上可接受的盐,并具有对具有镇静作用的1,4-苯二氮䓬类化合物的中枢抑制、肌肉松弛、共济失调、降低血压和呼吸抑制特性的拮抗作用。例如,在过量摄入具有镇静作用的1,4-苯二氮䓬类药物的中毒情况下,它们可以用作解毒剂,或者用于缩短由这些1,4-苯二氮䓬类药物引起的麻醉。它们还可用于抑制用于其他适应症领域的1,4-苯二氮䓬类药物对中枢神经系统的活性,例如对血吸虫杀虫活性的1,4-苯二氮䓬类药物,如(+)-5-(o-氯苯基)-1,3-二氢-3-甲基-7-硝基-2H-1,4-苯二氮䓬啶-2-酮。还提供了制备咪唑二氮杂苯衍生物及其中间体的方法。