申请人:Eisai Co., Ltd.
公开号:US06573384B1
公开(公告)日:2003-06-03
To provide a novel, industrially superior process for producing a 1,4-substituted cyclic amine compound which is useful as a pharmaceutical, and an intermediate for the process. That is, a process for producing an indole compound (I), which comprises reducing a 1,4-subsutituted 2-nitrophenyl compound (VII) to give a 1,4-substituted 2-aminophenyl compound (V); reacting the compound (V) with an N-substituted 4-piperidone compound (VI) to give a 1,4-substituted 2-piperidylaminophenyl compound (IV); cyclizing the compound (IV) to give a 2-oxoindoline compound (III); halogenating the compound (III) to give a 2-halogenated indole compound (II); reducing the compound (II); and if necessary subjecting the resulting compound to alcoholysis or aminolysis.
wherein each of R1 and R2 represents a substituent; X represents a halogen atom; and n is a numerical subscript.
提供一种新的、工业上优越的生产1,4-取代环胺化合物的过程,该化合物在制药中有用,并提供了该过程的中间体。即制备吲哚化合物(I)的过程,包括将1,4-取代2-硝基苯基化合物(VII)还原以得到1,4-取代2-氨基苯基化合物(V);将化合物(V)与N-取代4-哌啶酮化合物(VI)反应,以得到1,4-取代2-哌啶基氨基苯基化合物(IV);环化化合物(IV)以得到2-氧代吲哚烷化合物(III);卤代化合物(III)以得到2-卤代吲哚化合物(II);还原化合物(II);如有必要,将所得化合物经过醇解或胺解。其中,R1和R2各自表示取代基;X表示卤素原子;n是一个数值下标。