bis[19-nor-4α(2-hydroxyethyloxycarbonyl)-ent-beyeran-16-yl]-1,6-hexanedicarboxylate

bis{19-nor-4α[(1",2",3",4"-tetra-O-acetyl-β-D-glucopyranuronoyloxy)ethoxycarbonyl]-ent-beyeran-16-yl}-1,6-hexanedicarboxylate