Benzoic acid (3aR,5S,6R,6aR)-6-carboxymethyl-2,2-dimethyl-tetrahydro-furo[2,3-d][1,3]dioxol-5-ylmethyl ester 在
吡啶 、
1-羟基苯并三唑 、 O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、
三乙胺 、
三氟乙酸 作用下,
反应 40.0h,
生成
Benzoic acid (2S,3R,4R,5S)-4-acetoxy-3-({[(2R,3S,5R)-3-(tert-butyl-diphenyl-silanyloxy)-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-2-ylmethyl]-carbamoyl}-methyl)-5-phenylsulfanyl-tetrahydro-furan-2-ylmethyl ester