trans-4-[(1R or 1S)-(6-{[4-(difluoromethyl)pyridin-2-yl]amino}-4-methyl-2,3'-bipyridin-6'-yl)-1-hydroxyethyl]cyclohexanecarboxylic acid 、
1-chloroethyl 1-methyl-1H-pyrazole-4-carboxylate 在
potassium carbonate 、 sodium iodide 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 5.0h,
生成 1-[({trans-4-[(1R)-1-(6-{[4-(difluoromethyl)pyridin-2-yl]amino}-4-methyl-2,3'-bipyridin-6'-yl)-1-hydroxyethyl]cyclohexyl}carbonyl)oxy]ethyl 1-methyl-1H-pyrazole-4-carboxylate