5-cyclohex-1-enyl-3-[(trans-4-methyl-cyclohexanecarbonyl)-(1-methyl-piperidin-4-yl)-amino]-thiophene-2-carboxylic acid 、
碘甲烷 以
二氯甲烷 为溶剂,
反应 2.75h,
以100%的产率得到4-[(2-carboxy-5-cyclohex-1-enyl-thiophen-3-yl)-(trans-4-methyl-cyclohexanecarbonyl)-amino]-1,1-dimethyl-piperidinium iodide