(S)-2-amino-N-(1-((2R,4R,5R)-3,3-difluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-2-oxo-1,2-dihydropyrimidin-4-yl)propanamide 2,2,2-trifluoroacetate 在
碳酸氢钠 作用下,
以
甲醇 为溶剂,
以75%的产率得到(2S)-2-[[1-[(2R,4R,5R)-3,3-difluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-2-oxopyrimidin-4-yl]amino]propanamide