(5-[1-(t-butyldimethylsiloxy)vinyl]-3-{[2-(4-fluorophenyl)ethyl]-methylsulfamoyl}thiophene-2-yl)carbamic acid t-butyl ester 、
丙烯腈 在
silica gel 、
ethyl acetate n-hexane 作用下,
以
邻二甲苯 为溶剂,
反应 0.5h,
以(4-cyano-3-{[2-(4-fluorophenyl)ethyl]methylsulfamoyl}-7-t-butyl-dimethylsiloxy-4,5,6,7-tetrahydrobenzo[b]thiophene-2-yl)carbamic acid t-butyl ester (54 mg) was obtained as a mixture的产率得到(4-cyano-3-{[2-(4-fluorophenyl)ethyl]methylsulfamoyl}-7-t-butyl-dimethylsiloxy-4,5,6,7-tetrahydrobenzo[b]thiophene-2-yl)carbamic acid t-butyl ester