申请人:Boehringer Ingelheim KG
公开号:US05312916A1
公开(公告)日:1994-05-17
The present invention relates to a process for preparing 3-amino-9,13b-dihydro-1H-dibenz[c,f]-imidazo[1,5-a]azepine-hydrochloride, as follows: a) hydrogenating 6-phthalimidomethyl-5H-dibenz[b,e]-azepine, to produce 6-(phthalimidomethyl)-6,11-dihydro-5H-dibenz[b,e]azepine; b) reacting the 6-(phthalimidomethyl)-6,11-dihydro-5H-dibenz[b,e]azepine with hydrazine, to produce 6-aminomethyl-6,11-dihydro-5H-dibenz[b,e]azepine; c) reacting the 6-aminomethyl-6,11-dihydro-5H-dibenz[b,e]azepine with bromooyanogen, to produce 3-amino-9,13b-dihydro-1H-dibenz[c,f]imidazo[1,5-a]azepine; and d) precipitating the 3-amino-9,13b-dihydro-1H-dibenz[c,f]imidazo[1,5-a]azepine in the presence of DMF and HCl, to produce 3-amino-9,13b-dihydro-1H-dibenz[c,f]imidazo[1,5-a]azepine-hydrochloride.
本发明涉及一种制备3-
氨基-9,13b-二氢-1H-二苯并[c,f]-
咪唑[1,5-a]氮杂
环庚烷盐酸盐的方法,包括以下步骤:a) 氢化6-邻二甲
酰亚胺甲基-5H-二苯并[b,e]-氮杂
环庚烷,得到6-(邻二甲
酰亚胺甲基)-6,11-二氢-5H-二苯并[b,e]氮杂
环庚烷;b) 将6-(邻二甲
酰亚胺甲基)-6,11-二氢-5H-二苯并[b,e]氮杂
环庚烷与
肼反应,得到6-
氨甲基-6,11-二氢-5H-二苯并[b,e]氮杂
环庚烷;c) 将6-
氨甲基-6,11-二氢-5H-二苯并[b,e]氮杂
环庚烷与
溴氧
氰反应,得到3-
氨基-9,13b-二氢-1H-二苯并[c,f]
咪唑[1,5-a]氮杂
环庚烷;d) 在
DMF和HCl的存在下沉淀3-
氨基-9,13b-二氢-1H-二苯并[c,f]
咪唑[1,5-a]氮杂
环庚烷,得到3-
氨基-9,13b-二氢-1H-二苯并[c,f]
咪唑[1,5-a]氮杂
环庚烷盐酸盐。