5-{(5E)-5,6,7-trideoxy-7-[6-nitro-2,2-bis(4-methoxyphenyl)-1,3-benzodioxole-4-carboxamido]-β-D-ribo-hept-5-enofuranosyl}-5H-pyrrolo[3,2-c]pyridine

methyl 2,2-bis(4-methoxyphenyl)-6-nitrobenzo[d][1,3]dioxole-4-carboxylate