The present invention relates to a novel process for the preparation of heterocyclic alkylamide derivatives having the following formula: ##STR1## and the pharmaceutically acceptable acid addition salt thereof wherein X represents halo, alkyl having 1 to 6 carbon atoms, hydrido, trifluoromethyl, phenyl, or lower alkoxy having 1 to 6 carbon atoms; Y represents the group --CN or --CONH.sub.2 ; R.sub.2 represents alkyl having 1 to 6 carbon atoms; R.sub.3 represents acetyl, benzoyl, phenacetyl or trifluoroacetyl; m is the integer 1 or 2 and n is an integer from 1 to 3 inclusive; which comprises alkylating an aminoalkanol using a benzaldehyde/aminoalkanol/ketone mixture in the presence of a platinum catalyst to give an alkyl substituted phenylmethylaminoalkanol; halogenating the alkanol using a halogenating agent to give a haloalkyl alkylbenzenemethanamine salt; treating the salt with substituted phenyl piperidinealkanenitrile or substituted phenyl pyrrolidinealkanenitrile in the presence of base and dimethyl sulfoxide to give a substituted phenyl substituted aminoalkyl piperidinealkanenitrile or substituted aminoalkyl pyrrolidinealkanenitrile; hydration of the nitrile to give the corresponding amide; and N-debenzylation of the amide followed by acetylation to give the compounds of formula I wherein Y is --CONH.sub.2.
本发明涉及一种制备具有以下结构的杂环烷基酰胺衍
生物的新工艺:##STR1## 和其药用可接受的酸盐,其中X代表卤素,含有1至6个碳原子的烷基,氢代基,三
氟甲基,苯基,或含有1至6个碳原子的低级烷氧基;Y代表基团--CN或--CONH.sub.2;R.sub.2代表含有1至6个碳原子的烷基;R.sub.3代表乙酰基,苯甲酰基,
苯乙酰基或三
氟乙酰基;m为整数1或2,n为1至3的整数;其中包括使用
苯甲醛/
氨基醇/酮混合物在
铂催化剂存在下烷基化
氨基醇以得到烷基取代的苯甲基
氨基醇;使用卤化试剂卤化醇以得到卤代烷基烷基苯
甲胺盐;在碱和
二甲基亚砜存在下处理盐以得到取代苯基
哌啶烷基腈或取代苯基
吡咯烷基腈以得到取代苯基取代
氨基烷基
哌啶烷基腈或取代
氨基烷基
吡咯烷基腈;
水合腈以得到相应的酰胺;去苄基化酰胺后醋酰化以得到式I的化合物,其中Y为--CONH.sub.2。