2-[[[(2R,3S,4R,5R)-5-(4-amino-2-oxopyrimidin-1-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-hydroxyphosphoryl]oxyethyl-trimethylazanium
2-[[[(2R,3S,4R,5R)-5-(4-amino-2-oxo-pyrimidin-1-yl)-3,4-dihydroxy-tetrahydrofuran-2-yl]methoxy-hydroxy-phosphoryl]oxy-hydroxy-phosphoryl]oxyethyl-trimethyl-ammonium
2-[[[(2R,3S,4R,5R)-5-(4-amino-2-oxo-1-pyrimidinyl)-3,4-dihydroxy-2-tetrahydrofuranyl]methoxy-hydroxyphosphoryl]oxy-hydroxyphosphoryl]oxyethyl-trimethylammonium
2-[[[(2R,3S,4R,5R)-5-(4-amino-2-keto-pyrimidin-1-yl)-3,4-dihydroxy-tetrahydrofuran-2-yl]methoxy-hydroxy-phosphoryl]oxy-hydroxy-phosphoryl]oxyethyl-trimethyl-ammonium
2-[[[(2R,3S,4R,5R)-5-(4-amino-2-oxo-pyrimidin-1-yl)-3,4-dihydroxy-oxolan-2-yl]methoxy-hydroxy-phosphoryl]oxy-hydroxy-phosphoryl]oxyethyl-trimethyl-azanium