申请人:Hoffmann-La Roche Inc.
公开号:US04346036A1
公开(公告)日:1982-08-24
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 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.
该专利介绍了公式为##STR1##的咪唑二氮杂苯并二氮䓬衍生物,其中A连同α和β表示的两个碳原子被选自以下组合:##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被选自氰基、低级脂肪酰基和式为--COOR.sup.4的基团,R.sup.4被选自甲基、乙基、异丙基和2-羟乙基,R.sup.5被选自氢、三氟甲基和卤素,R.sup.6被选自氢、三氟甲基、卤素和低级烷基,R.sup.2为氢,R.sup.3为氢或低级烷基,或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,并且其药学上可接受的盐具有拮抗1,4-苯二氮䓬酮的中枢抑制、肌肉松弛、共济失调、降低血压和呼吸抑制等性质的功效,这些化合物可以用作拮抗具有镇静作用的1,4-苯二氮䓬酮中毒的解毒剂,或者缩短由这些1,4-苯二氮䓬酮诱导的麻醉时间。它们还可以用于抑制其他领域中使用的1,4-苯二氮䓬酮对中枢神经系统的活动,例如对血吸虫活性的1,4-苯二氮䓬酮(如(+)-5-(o-氯苯基)-1,3-二氢-3-甲基-7-硝基-2H-1,4-苯二氮䓬酮-2-酮)的活性。此外,还介绍了制备咪唑二氮杂苯并二氮䓬衍生物及其中间体的方法。