methyl 4-azido-2,3-di-O-acetyl-4-deoxy-β-L-arabinopyranosyl-(1->8)-(allyl 3,4,5,7-tetra-O-acetyl-D-glycero-α-D-talo-oct-2-ulopyranoside)onate

4-azido-2,3-di-O-benzyl-4-deoxy-β-L-arabinopyranosyl N-phenyltrifluoroacetimidate