4-{2-[(2-Methoxy-1-methyl-ethylamino)-methyl]-phenyl}-piperazine-1-carboxylic acid tert-butyl ester 、
氯甲酸-9-芴基甲酯 以82%的产率得到4-(2-{[(9H-Fluoren-9-ylmethoxycarbonyl)-(2-methoxy-1-methyl-ethyl)-amino]-methyl}-phenyl)-piperazine-1-carboxylic acid tert-butyl ester