[[(2R,3S,4R,5R)-5-(4-amino-2-oxopyrimidin-1-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-oxidophosphoryl] phosphate
[[(2R,3S,4R,5R)-5-(4-amino-2-oxo-pyrimidin-1-yl)-3,4-dihydroxy-tetrahydrofuran-2-yl]methoxy-oxido-phosphoryl] phosphate
[[(2R,3S,4R,5R)-5-(4-amino-2-oxo-1-pyrimidinyl)-3,4-dihydroxy-2-tetrahydrofuranyl]methoxy-oxidophosphoryl] phosphate
[[(2R,3S,4R,5R)-5-(4-amino-2-keto-pyrimidin-1-yl)-3,4-dihydroxy-tetrahydrofuran-2-yl]methoxy-oxido-phosphoryl] phosphate
[[(2R,3S,4R,5R)-5-(4-amino-2-oxo-pyrimidin-1-yl)-3,4-dihydroxy-oxolan-2-yl]methoxy-oxido-phosphoryl] phosphate