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 antagonizing the central-depressant, muscle relaxant, ataxic, blood pressure-lowering and respiratory-depressant properties of 1,4-benzodiazepines which have tranquillizing activity. They can be used, for example, as antidotes in the case of intoxications in which excessive intake of 1,4-benzodiazepines which have tranquillizing 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.
本发明提供了以下式子的
咪唑二氮杂苯并二氮杂环衍
生物:##STR1## 其中A与标记为α和β的两个碳原子一起选自以下组:##STR2## 虚线代表(a)和(b)组中存在的双键,D为>C.dbd.O或>C.dbd.S,R.sup.1选自
氰基,低烷酰基和公式--COOR.sup.4的基团,R.sup.4选自甲基,乙基,异丙基和2-羟乙基,R.sup.5选自氢,三
氟甲基和卤素,R.sup.6选自氢,三
氟甲基,卤素和低烷基,R.sup.2为氢,R.sup.3为氢或低烷基或R.sup.2和R.sup.3一起为三亚甲基或
丙烯基,标记为γ的碳原子具有S-或R,S-构型,以及其药学上可接受的盐。本发明的
咪唑二氮杂苯并二氮杂环衍
生物可用于拮抗具有镇静作用的1,4-苯二氮䓬类药物的中枢抑制,肌肉松弛,共济失调,降低血压和呼吸抑制特性。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,可以使用它们作为解毒剂,或者缩短由这些1,4-苯二氮䓬类药物引起的麻醉。它们还可用于抑制在其他适应症领域使用的1,4-苯二氮䓬类药物对中枢神经系统的活性,例如对血吸虫活性的1,4-苯二氮䓬类药物,如(+)-5-(邻
氯苯基)-1,3-二氢-3-甲基-7-硝基-2H-1,4-苯二氮䓬啶-2-酮。本发明还提供了制备
咪唑二氮杂苯并二氮杂环衍
生物及其中间体的方法。