1-(difluoromethyl)cyclopropane-1-sulfonamide 、 2-(1-((R)-2-(((1R,3s,5S)-8-oxabicyclo[3.2.1]octan-3-yl)oxy)-2-(2-methoxyphenyl)ethyl)-5-methyl-6-(oxazol-2-yl)-2,4-dioxo-1,4-dihydrothieno[2,3-d]pyrimidin-3(2H)-yl)-2-methylpropanoic acid 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 、 sodium hydride 作用下,
以
N,N-二甲基甲酰胺 、 mineral oil 为溶剂,
反应 20.33h,
生成 2-(1-((R)-2-(((1R,3s,5S)-8-oxabicyclo[3.2.1]octan-3-yl)oxy)-2-(2-methoxyphenyl)ethyl)-5-methyl-6-(oxazol-2-yl)-2,4-dioxo-1,4-dihydrothieno[2,3-d]pyrimidin-3(2H)-yl)-N-((1-(difluoromethyl)cyclopropyl)sulfonyl)-2-methylpropanamide