There is disclosed a process for preparing a compound of the following general formula
wherein Z is a lower (C1-4) alkoxy, chloro, cyano, hydroxyalkyl, acyl, m-lower (C1-4) alkyl, or o-vinylic; which process comprises
(1) reacting a compound of the following general formula
with beta-(3, 4-dimethoxyphenyl) ethylamine having the formula
at a temperature of 20 C or less than 20 C
本发明公开了一种制备通式如下的化合物的工艺
其中 Z 是低级 (C1-4) 烷氧基、
氯、
氰基、羟基烷基、酰基、间低级 (C1-4) 烷基或邻
乙烯基;该工艺包括
(1) 将下式通式的化合物
与通式如下的 beta-(3,4-二
甲氧基苯基)
乙胺反应
温度为 20 摄氏度或低于 20 摄氏度