4-{2-[(2-chloro-acetyl)-(2-methyl-3-trifluoro-methyl-phenyl)-amino]-2-thiophen-2-yl-acetyl}-piperazine-1-carboxylic acid tert-butyl ester 、
三氟乙酸 以
二氯甲烷 为溶剂,
反应 2.5h,
以100%的产率得到2-chloro-N-(2-methyl-3-trifluoromethyl-phenyl)-N-(2-oxo-2-piperazin-1-yl-1-thiophen-2-yl-ethyl)-acetamide trifluoroacetate