3-bromo-2-(1-tert-butoxycarbonyl-1H-thieno[3,2-c]pyrazol-3-yl)-6-hydroxyindole-1-carboxylic acid tert-butyl ester 、
Dicaesio carbonate 在
silica gel 、 ethyl acetate heptane 、
3-bromo-6-(3-bromopropoxy)-2-(1-tert-butoxycarbonyl-1H-thieno[3,2-c]pyrazol-3-yl)indole-1-carboxylic acid tert-butyl ester 作用下,
以
1,3-二溴丙烷 为溶剂,
反应 1.0h,
以90/10) to provide 3-bromo-6-(3-bromo-propoxy)-2-(1-tert-butoxycarbonyl-1H-thieno[3,2-c]pyrazol-3-yl)-indole-1-carboxylic acid tert-butyl ester [0.19 g, 72%, Intermediate (66)] as a white foam的产率得到3-bromo-6-(3-bromopropoxy)-2-(1-tert-butoxycarbonyl-1H-thieno[3,2-c]pyrazol-3-yl)indole-1-carboxylic acid tert-butyl ester