2-({3-[(2R,4S,5R)-4-Hydr-oxy-5-hydroxy-methyl-2,3,4,5-tetra-hydro-furan-2-yl]-5-methyl-2,6-dioxo-1,2,3,6-tetra-hydro-pyrimidin-1-yl}meth-yl)isoindoline-1,3-dione.

2-({3-[(2R,4S,5R)-4-Hydr-oxy-5-hydroxy-methyl-2,3,4,5-tetra-hydro-furan-2-yl]-5-methyl-2,6-dioxo-1,2,3,6-tetra-hydro-pyrimidin-1-yl}meth-yl)isoindoline-1,3-dione.