N-甲基哌嗪 、
(4-methoxy-7-phenyl-benzo[b]thiophen-2-yl)-carbamic acid benzyl ester 以The title compound MS: m/e=380.2 (M−H) was obtained as a light yellow foam (46% yield) by the reaction of N-methyl-piperizine with (4-methoxy-7-phenyl-benzo[b]thiophen-2-yl)-carbamic acid benzyl ester according to the method的产率得到4-methyl-piperazine-1-carboxylic acid (4-methoxy-7-phenyl-benzo[b]thiophen-2-yl)-amide