1-((4aR,5R,7R,7aS)-4a,7a-Dihydroxy-5-hydroxymethyl-hexahydro-furo[3,4-b]pyran-7-yl)-5-methyl-1H-pyrimidine-2,4-dione

1-((4aR,5R,7R,7aS)-4a-Benzyloxy-5-benzyloxymethyl-7a-hydroxy-hexahydro-furo[3,4-b]pyran-7-yl)-5-methyl-1H-pyrimidine-2,4-dione