2,5-dioxopyrrolidin-1-yl 1-methylcyclopropyl carbonate 、
(1R,3s,5S)-3-((1r,4R)-4-(5-(methylsulfonyl)pyrazin-2-yloxy)cyclohexyloxy)-8-azabicyclo[3.2.1]octane hydrochloride 在
三乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 16.0h,
以88.5%的产率得到(1R,3s,5S)-1-methylcyclopropyl 3-((1r,4R)-4-(5-(methylsulfonyl)pyrazin-2-yloxy)cyclohexyloxy)-8-azabicyclo[3.2.1]octane-8-carboxylate