5-(1-isopropyl-piperidin-4-yloxy)-6-methyl-1H-indole-2-carboxylic acid hydrochloride 、
N-哌嗪甲酸乙酯 在
4-[5-(1-isopropyl-piperidin-4-yloxy)-6-methyl-1H-indole-2-carbonyl]-piperazine-1-carboxylic acid ethyl ester 作用下,
以to afford the title compound as a light-yellow foam (65%)的产率得到4-[5-(1-isopropyl-piperidin-4-yloxy)-6-methyl-1H-indole-2-carbonyl]-piperazine-1-carboxylic acid ethyl ester