申请人:The Upjohn Company
公开号:US03966736A1
公开(公告)日:1976-06-29
2,9-Dihydro-3H-pyrido[3,2-c]-s-triazolo[4,3-a][1,5]-benzodiazepin-3-ones ##SPC1## Wherein R' and R" are alkyl of 1 to 3 carbon atoms, inclusive; or the group ##EQU1## together is pyrrolidino, piperidino, 4-methylpiperazino or [4-(2-hydroxyethyl)]piperazino; wherein R.sub.2 and R.sub.3 are hydrogen, chloro, bromo, trifluoromethyl, or alkyl defined as above and wherein R.sub.4 is hydrogen, alkyl as defined above or ##EQU2## in which n is the integer 2 or 3 or R', R" or ##EQU3## are defined as above, are obtained by reacting a compound of the formula 1 ##SPC2## Wherein R.sub.2, R.sub.3, R', R", or ##EQU4## are defined as above, with phosphorus pentasulfide to give the corresponding 5-thione compound (II); treating II with an alkyl carbazate to obtain the compound of formula III: ##SPC3## wherein R.sub.2, and R.sub.3 are defined as above and treating III with an alkyl halide of 1 to 3 carbon atoms inclusive, or ##EQU5## in which n, R', R", or ##EQU6## is defined as above, to obtain those compounds of formula IVA in which R.sub.4 is alkyl or ##EQU7## as defined above. The compounds of formula IV (which include compounds III and IVA) and the pharmacologically acceptable acid addition salts thereof have sedative and anti-tussive activity and can be used in mammals.
2,9-二氢-3H-吡啶并[3,2-c]-s-三唑并[4,3-a][1,5]-苯二氮平-3-酮(##SPC1##),其中R'和R"是1至3个碳原子(包括)的烷基;或者该基团##EQU1##是吡咯烷基、哌啶基、4-甲基哌嗪基或[4-(2-羟乙基)]哌嗪基;其中R.sub.2和R.sub.3是氢、氯、溴、三氟甲基或上述定义的烷基,R.sub.4是氢、上述定义的烷基或##EQU2## 其中n为整数2或3或R'、R"或##EQU3## 如上定义,通过将式1的化合物与五硫化二磷反应以得到相应的5-硫代化合物(II);用烷基卡巴肼处理II以获得式III的化合物:##SPC3## 其中R.sub.2和R.sub.3如上定义,并用1至3个碳原子的烷基卤代物或##EQU5## 其中n、R'、R"或##EQU6## 如上定义,以获得式IVA的化合物,其中R.sub.4为上述定义的烷基或##EQU7## 化合物IV(包括化合物III和IVA)及其药学上可接受的酸盐具有镇静和止咳活性,可用于哺乳动物。