3,4-dichloro-5-methyl-N-[(3SR,4RS)-3-methyl-4-piperidyl]-1H-pyrrole-2-carboxamide 、
ethyl 2-bromo-4-(5-chloropyrazin-2-yl)thiazole-5-carboxylate 在
N,N-二异丙基乙胺 作用下,
以
N-甲基吡咯烷酮 为溶剂,
反应 5.0h,
以78%的产率得到ethyl 4-(5-chloropyrazin-2-yl)-2-[(3S,4R)-4-{[(3,4-dichloro-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-methylpiperidin-1-yl]-1,3-thiazole-5-carboxylate