cis-{5-(4-amino-5-fluoro-2-oxo-1(2H)-pyrimidinyl)-1,3-oxathiolan-2-yl}methyl butanoate 以
乙腈 为溶剂,
生成 Butyric acid (S)-5-(4-amino-5-fluoro-2-oxo-2H-pyrimidin-1-yl)-[1,3]oxathiolan-2-ylmethyl ester 、
Butyric acid (R)-5-(4-amino-5-fluoro-2-oxo-2H-pyrimidin-1-yl)-[1,3]oxathiolan-2-ylmethyl ester