申请人:Kali-Chemie Pharma GmbH
公开号:US04505908A1
公开(公告)日:1985-03-19
Disclosed are 7-bromo-5-(2-halophenyl)-1H-2,3-dihydro-1,4-benzodiazepines of the formula I ##STR1## in which R.sub.1 is a hydrogen atom or a lower alkoxy or alkanoyloxy radical and R.sub.2 is a halogen atom. The compounds possess psychopharmacological, and especially anti-aggressive properties. To manufacture compounds of formula I, corresponding 2-halomethyl-7-bromo-5-(2-halophenyl)-1H-2,3-dihydro-1,4-benzodiazepines are cyclized to corresponding 7-bromo-1,2-methylene-5-(2-halophenyl)-1H-2,3-dihydro-1,4-benzodiazepines and in these the aziridine ring is opened through treatment with a lower alcohol or a lower carboxylic acid in the presence of a Lewis acid.
本发明涉及一种式为I的7-溴-5-(2-卤代苯基)-1H-2,3-二氢-1,4-苯二氮平化合物:##STR1## 其中R.sub.1是氢原子或较低的烷氧基或酰氧基基团,R.sub.2是卤素原子。该化合物具有精神药理学特性,特别是抗攻击性特性。制造式I化合物的方法是,将相应的2-卤甲基-7-溴-5-(2-卤代苯基)-1H-2,3-二氢-1,4-苯二氮平化合物环化为相应的7-溴-1,2-亚甲基-5-(2-卤代苯基)-1H-2,3-二氢-1,4-苯二氮平化合物,然后在存在Lewis酸的情况下,通过用较低的醇或较低的羧酸处理打开氮杂环。