[(2S,4R,5S,6S)-5-benzoyloxy-2-(dimethoxyphosphorylmethyl)-10-oxo-3,7-dioxa-1,9-diazatricyclo[6.4.0.02,6]dodeca-8,11-dien-4-yl]methyl benzoate 生成
[(2R,3S,4S,5S)-3-benzoyloxy-5-(dimethoxyphosphorylmethyl)-5-(2,4-dioxopyrimidin-1-yl)-4-hydroxyoxolan-2-yl]methyl benzoate