申请人:Pfizer Inc.
公开号:US04698444A1
公开(公告)日:1987-10-06
1,1-Di(p-fluorophenyl)urea, 2-carbobenzoxy-8-fluoro-5-(p-fluorophenyl)-2,3,4,5-tetrahydro-1H-pyrido[4, 3-b]indole, an efficient process for converting the former to the latter, further comprising conversion of the latter to 8-fluoro-5-(p-fluorophenyl)-2-[4-(p-fluorophenyl)-4-hydroxybutyl)]-2,3,4,5 -tetrahydro-1H-pyrido[4,3-b]indole (flutroline) or to 8-fluoro-5-(p-fluorophenyl)-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (an alternative flutroline intermediate).
1,1-二(对氟苯基)脲,2-羧苄氧基-8-氟-5-(对氟苯基)-2,3,4,5-四氢-1H-吡啶[4,3-b]吲哚,一种将前者转化为后者的有效方法,还包括将后者转化为8-氟-5-(对氟苯基)-2-[4-(对氟苯基)-4-羟基丁基)]-2,3,4,5-四氢-1H-吡啶[4,3-b]吲哚(氟曲林)或8-氟-5-(对氟苯基)-2,3,4,5-四氢-1H-吡啶[4,3-b]吲哚(另一种氟曲林中间体)的转化。