申请人:Takeda Chemical Industries, Ltd.
公开号:US04175079A1
公开(公告)日:1979-11-20
The present invention relates to pyrimidobenzodiazepine derivatives of the formula (I) and 2-(N-acetoacetal)aminobenzodiazepine derivatives of the formula (II), which compounds have the following formulas: ##STR1## wherein R.sup.1 represents a hydrogen atom or a lower alkyl group, R.sup.2 represents a hydrogen atom, a lower alkyl group or an aryl group, and rings A and/or B are unsubstituted or substituted by one or more of a halogen, nitro, trifluoromethyl, lower alkyl or lower alkoxy group; including the cases wherein the nitrogen atom at the 6-position of the compound (I) or the 4-position of the compound (II) may be in the form of N-oxide and wherein compound (I) may be in the form of a pharmaceutically acceptable acid addition salt thereof. The present invention also relates to a method of producing these compounds. The compounds (I) and (II) are useful as muscle relaxants, anticonvulsants, sedatives, tranquilizers, etc.
本发明涉及以下化合物的嘧啶并苯二氮平衍生物(I)和2-(N-乙酰乙酰)氨基苯二氮平衍生物(II),其化合物具有以下公式:
其中R1代表氢原子或较低的烷基,R2代表氢原子、较低的烷基或芳基,环A和/或B未取代或被一个或多个卤素、硝基、三氟甲基、较低烷基或较低烷氧基所取代;包括化合物(I)的6-位氮原子或化合物(II)的4-位氮原子可以形成N-氧化物的情况,以及化合物(I)可以以其药学上可接受的酸加盐形式存在。本发明还涉及一种制备这些化合物的方法。化合物(I)和(II)可用作肌肉松弛剂、抗惊厥药、镇静剂、安定剂等。