Benzoic acid (2R,3S,4R,5S)-5-(4-acetylamino-2-oxo-2H-pyrimidin-1-yl)-4-azido-2-hydroxymethyl-tetrahydro-thiophen-3-yl ester 在
氨 作用下,
以
甲醇 、
水 为溶剂,
以87%的产率得到4-Amino-1-((2S,3R,4S,5R)-3-azido-4-hydroxy-5-hydroxymethyl-tetrahydro-thiophen-2-yl)-1H-pyrimidin-2-one