{[(2R,3S,4S,5R)-2-(6-amino-9H-purin-9-yl)-5-[({[({[(2R,3R,4S,5R)-5-[(4R)-3-carbamoyl-4-hydrogenio-1,4-dihydropyridin-1-yl]-3,4-dihydroxyoxolan-2-yl]methoxy}(hydroxy)phosphoryl)oxy](hydroxy)phosphoryl}

[[(2R,3R,4R,5R)-5-(6-aminopurin-9-yl)-3-hydroxy-4-phosphonooxyoxolan-2-yl]methoxy-hydroxyphosphoryl] [(2R,3S,4R,5R)-5-(3-carbamoyl-4-deuterio-4H-pyridin-1-yl)-3,4-dihydroxyoxolan-2-yl]methyl hydrogen phosphate