N-[1-[(2R,4S,5R)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-4-[2-cyanoethoxy(methyl)phosphinothioyl]oxyoxolan-2-yl]-2-oxopyrimidin-4-yl]benzamide 生成 (S)-Methyl-phosphonothioic acid O-{(2R,3S,5R)-5-(4-benzoylamino-2-oxo-2H-pyrimidin-1-yl)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-tetrahydro-furan-3-yl} ester