Novel 2-acylaminomethyl-1H-2,3-dihydro-1,4-benzodiazepine derivatives are disclosed which possess the Formula I ##STR1## wherein R.sub.1 represents hydrogen, lower akyl, lower alkenyl or cyclopropylmethyl; R.sub.2 represents hydrogen, lower alkyl or lower alkenyl; R.sub.3 represents a group of the formula a, b, c or d; ##STR2## wherein R is hydrogen or C.sub.1 -C.sub.3 - alkyl; R.sub.4 is hydrogen, lower alkyl, lower alkoxy, nitro or halogen, and R.sub.4 ' is hydrogen or C.sub.1 -C.sub.4 - alkyl and the aromatic groups A and B may be unsubstituted or substituted by 1 to 3 substituents such as halogen, lower alkylthio, lower alkoxy, lower alkyl, hydroxy, nitro, trifluoromethyl or methylenedioxy or ethylenedioxy and optical isomers and acid addition salts of the compounds. In addition to psycho pharmacological, diuretic and antiarrhythmic properties, the novel compounds of Formula I possess primarily outstanding analgesic activities and are low in toxicity. The compounds are prepared by acylating 2-aminomethyl-1,4-benzodiazepine derivatives with corresponding carbonic acid derivatives. Furthermore, 2-azidomethyl-1,4-benzodiazepine derivatives are disclosed which provide valuable intermediates for the preparation of the compounds of Formula I yet also possess themselves pharmacological activities.
揭示了一种新颖的2-酰胺基甲基-1H-2,3-二氢-1,4-苯二氮平衍
生物,其具有以下
化学式I ##STR1## 其中R.sub.1代表氢、较低的烷基、较低的烯基或
环丙基甲基;R.sub.2代表氢、较低的烷基或较低的烯基;R.sub.3代表具有以下a、b、c或d的式子的基团; ##STR2## 其中R为氢或C.sub.1 -C.sub.3-烷基;R.sub.4为氢、较低的烷基、较低的烷氧基、硝基或卤素,R.sub.4'为氢或C.sub.1 -C.sub.4-烷基,芳香族基A和B可以是未取代的或被1至3个卤素、较低的烷
硫基、较低的烷氧基、较低的烷基、羟基、硝基、三
氟甲基或亚甲二氧基或乙二氧基等取代基所取代,以及化合物的光学异构体和酸盐。除了具有精神药理学、利尿和抗心律失常特性外,化合物I的新颖化合物主要具有出色的镇痛活性并且毒性低。这些化合物是通过用相应的
碳酸衍
生物对2-
氨基甲基-1,4-苯二氮平衍
生物进行酰化制备的。此外,还揭示了2-
叠氮甲基-1,4-苯二氮平衍
生物,它们为制备化合物I的有价值中间体提供,同时本身也具有药理活性。