申请人:Bristol-Myers Company
公开号:US04150032A1
公开(公告)日:1979-04-17
Improved processes for preparing 2'-alkoxy-2,5-di-substituted-9-oxo-6,7-benzomorphans from benz[e]indolines and synthesis of the benz[e]indoline intermediates are described. A representative example involves synthesis of 9b-allyl-8-methoxy-3-methyl-5,9b-dihydrobenz[e]indoline and bromination thereof to 9b-allyl-4-bromo-8-methoxy-2,4,5,9b-tetrahydro-1H-benz[e]indole methylbromide which is then hydrolyzed with a weak base such as ammonium bicarbonate to provide 5-allyl-2'-methoxy-2-methyl-9-oxo-6,7-benzomorphan.
改进的工艺用于从苯并[ e ]吲哚制备2'-烷氧基-2,5-二取代-9-酮基-6,7-苯吗啉,并描述了苯并[ e ]吲哚合成的中间体。一个代表性的例子涉及合成9b-烯丙基-8-甲氧基-3-甲基-5,9b-二氢苯并[ e ]吲哚,并对其进行溴化以得到9b-烯丙基-4-溴-8-甲氧基-2,4,5,9b-四氢-1H-苯并[ e ]吲啉甲溴化物,然后用弱碱(如碳酸氢铵)水解以提供5-烯丙基-2'-甲氧基-2-甲基-9-酮基-6,7-苯吗啉。