21870-27-9

[(2R,3R,4R,5R)-5-(4-amino-2-oxo-pyrimidin-1-yl)-3,4-dihydroxy-oxolan-2-yl]methoxy-[hydroxy-[(2R,3R,6R)-3-hydroxy-6-methyl-5-oxo-oxan-2-yl]oxy-phosphoryl]oxy-phosphinic acid