4-{4-[(4,5-dichloro-1-ethyl-1H-indole-2-carbonyl)-amino]-phenyl}-piperazine-1-carboxylic acid tert-butyl ester 以
二氯甲烷 、
盐酸 、
1,4-二氧六环 为溶剂,
反应 24.0h,
以to afford 4,5-dichloro-1-ethyl-1H-indole-2-carboxylic acid (4-piperazin-1-yl-phenyl)-amide hydrochloride salt (700 mg, 99% yield) as an off white solid的产率得到4,5-dichloro-1-ethyl-1H-indole-2-carboxylic acid (4-piperazin-1-yl-phenyl)-amide hydrochloride