1-(1-deoxy-2,3,4,6-tetra-O-benzyl-β-D-glucopyranos-1-yl)-3-(1-methyl-2,5-dioxopyrrolidin-3-yl)-indole

3-[1-(benzyloxy)methyl-2,5-dioxopyrrolidin-3-yl]-1-(1-deoxy-2,3,4,6-tetra-O-benzyl-β-D-glucopyranos-1-yl)-indole

2,5-dihydro-1-methyl-3-[1-(2,3,4,6-tetra-O-benzyl-β-D-glucopyranos-1-yl)-pyrrolo[2,3-b]pyridin-3-yl]-pyrrole-2,5-dione

1-benzyloxymethyl-3-[1-(2,3,4,6-tetra-O-benzyl-β-D-glucopyranos-1-yl)-pyrrolo[2,3-b]pyridin-3-yl]-pyrrolidine-2,5-dione