、
methyl <2-(hydroxy)ethyl 5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosid>onate 在
吡啶 、
2,4,6-三异丙基苯磺酰氯 作用下,
反应 5.0h,
以72%的产率得到3'-O-acetylthymidine 5'-<2-(methyl 5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-α-D-glycero-α-D-galacto-2-nonulopyranosyloxyonate)ethyl phosphonate>