6-methoxy-2-(4'-methoxy-3'-methyl-7'-(piperidin-1-ylcarbonyloxy)benzo[b]thiophen-2-ylthio)-3-(piperidin-1-ylcarbonyloxy)benzoic acid 、
碘甲烷 在
potassium carbonate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 1.5h,
以67%的产率得到6-methoxy-2-(4'-methoxy-3'-methyl-7'-(piperidin-1-ylcarbonyloxy)benzo[b]thiophen-2-ylthio)-3-(piperidin-1-ylcarbonyloxy)benzoic acid methyl ester