(2R,3R,4S)-2-Hydroxymethyl-3,4-dihydro-2H-pyrrole-3,4-diol

(2S,3S,4R,5R)-tert-butyl 2-(5-((benzyloxy)methyl)-4-methoxy-5H-pyrrolo[3,2-d]pyrimidin-7-yl)-4-hydroxy-3-((4-methoxybenzyl)oxy)-5-((trityloxy)methyl)pyrrolidine-1-carboxylate

(2S,3S,4R,5R)-tert-butyl 2-(5-((benzyloxy)methyl)-4-methoxy-5H-pyrrolo[3,2-d]pyrimidin-7-yl)-3-hydroxy-4-((4-methoxybenzyl)oxy)-5-((trityloxy)methyl)pyrrolidine-1-carboxylate

(3aR,4R,6S,6aS)-tert-butyl 4-((benzyloxy)methyl)-6-((Z)-3-(tert-butoxy)-1-hydroxy-3-oxoprop-1-en-2-yl)-2,2-dimethyldihydro-3aH-[1,3]dioxolo[4,5-c]pyrrole-5(4H)-carboxylate

(6aR,8S,9S,9aR)-tert-butyl 8-(5-(benzyloxymethyl)-4-methoxy-5H-pyrrolo[3,2-d]pyrimidin-7-yl)-9-hydroxy-2,2,4,4-tetraisopropyltetrahydro-[1,3,5,2,4]trioxadisilocino[7,6-b]pyrrole-7(8H)-carboxylate