2-(2,2-dimethyl-1,3-dioxolan-4-yl)ethyl bis(2-bromoethyl)phosphoramidic chloride 在
氢氟酸 、
溶剂黄146 、
lithium diisopropyl amide 作用下,
以
乙腈 为溶剂,
反应 1.5h,
生成 Bis-(2-bromo-ethyl)-phosphoramidic acid 3,4-dihydroxy-butyl ester (2R,3S,5R)-5-(5-fluoro-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-3-hydroxy-tetrahydro-furan-2-ylmethyl ester