Benzoic acid (2R,3S,5R)-5-[(5R,6S)-5,6-bis-(tert-butyl-dimethyl-silanyloxy)-5-methyl-2,4-dioxo-tetrahydro-pyrimidin-1-yl]-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-tetrahydro-furan-3-yl ester 在
potassium carbonate 、
N,N-二异丙基乙胺 作用下,
以
甲醇 为溶剂,
生成 Diisopropyl-phosphoramidous acid (2R,3S,5R)-5-[(5R,6S)-5,6-bis-(tert-butyl-dimethyl-silanyloxy)-5-methyl-2,4-dioxo-tetrahydro-pyrimidin-1-yl]-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-tetrahydro-furan-3-yl ester 2-cyano-ethyl ester