N-{2-[o-chloro-alpha(p-fluorophenyl)benzyloxy]ethyl}acetamide 、
N-{2-[bis(p-fluorophenyl)methoxy]ethyl}acetamide 、
顺丁烯二酸 、
盐酸 在
chloro-α-(p-fluorophenyl)benzyloxy 作用下,
以there is obtained 2-[ 0 -chloro-α-(p-fluorophenyl)benzyloxy]ethylamine hydrogen maleate, which的产率得到Ethylamine hydrogen maleate