[2-bromo-3-cyclohexyl-6-(methoxycarbonyl)-1H-indol-1-yl]acetic acid 、 N,N-dimethylpiperidin-4-amine bis(trifluoroacetate) 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
二氯甲烷 为溶剂,
反应 12.0h,
以70%的产率得到methyl 2-bromo-3-cyclohexyl-1-{2-[4-(dimethylamino)piperidin-1-yl]-2-oxoethyl}-1H-indole-6-carboxylate