6-(3-bromopropoxy)-2-(1-tert-butoxycarbonyl-5-hydroxymethyl-1H-thieno[3,2-c]pyrazol-3-yl)indole-1-carboxylic acid tert-butyl ester 、
N,N-二异丙基乙胺 、
哌啶 在
N,N-二异丙基乙胺 、 silica gel 、
2-(1-tert-butoxycarbonyl-5-hydroxymethyl-1H-thieno[3,2-c]pyrazol-3-yl)-6-(3-piperidin-1-ylpropoxy)indole-1-carboxylic acid tert-butyl ester 作用下,
以
乙腈 为溶剂,
反应 4.0h,
以to produce 2-(1-tert-butoxycarbonyl-5-hydroxymethyl-1H-thieno[3,2-c]pyrazol-3-yl)-6-(3-piperidin-1-yl-propoxy)-indole-1-carboxylic acid tert-butyl ester [730 mg, 74%, Intermediate (78)] as a white foam的产率得到2-(1-tert-butoxycarbonyl-5-hydroxymethyl-1H-thieno[3,2-c]pyrazol-3-yl)-6-(3-piperidin-1-ylpropoxy)indole-1-carboxylic acid tert-butyl ester