An optically active 1-(fluoro-, trifluoromethyl- or trifluoromethoxy-substituted phenyl)alkylamine N-monoalkyl derivative represented by the formula [4] is produced by a process including (a) reacting an optically active secondary amine, represented by the formula [1], with an alkylation agent R2-X, in the presence of a base, thereby converting the secondary amine into an optically active tertiary amine represented by the formula [3]; and (b) subjecting the tertiary amine to a hydrogenolysis, thereby producing the N-monoalkyl derivative,wherein R represents a fluorine atom, trifluoromethyl group or trifluoromethoxy group, n represents an integer of from 1 to 5, each of R1 and R2 independently represents an alkyl group having a carbon atom number of from 1 to 6, Me represents a methyl group, Ar represents a phenyl group or 1- or 2-naphthyl group, * represents a chiral carbon, and X represents a leaving group.
通过以下过程制备一种光学活性的1-(
氟代、三
氟甲基或三
氟甲氧基取代的苯基)烷基胺N-单烷基衍
生物,其
化学式如下[4]:(a) 用碱存在下,将光学活性的二级胺(
化学式[1]表示)与烷基化剂R2-X反应,从而将二级胺转化为光学活性的三级胺(
化学式[3]表示);(b) 将三级胺进行氢解作用,从而生成N-单烷基衍
生物,其中R代表
氟原子、三
氟甲基基团或三
氟甲氧基团,n代表1至5之间的整数,R1和R2分别代表具有1至6个碳原子的烷基基团,Me代表甲基基团,Ar代表苯基或1-或2-
萘基,*代表一个手性碳,X代表一个离去基团。