1 YMP O-(adenosine-5'-O-yl)-N-(L-tyrosyl)phosphoramidate 1.000 2 FPJ 5'-O-[(R)-hydroxy(propanoylamino)phosphoryl]adenosine 0.771 3 W0U [(2~{S},4~{S},5~{R})-5-(6-aminopurin-9-yl)-4-oxidanyl-oxolan-2-yl]methoxy-~{N}-[(2~{S},3~{S})-2-azanyl-3-oxidanyl-butanoyl]phosphonamidic acid 0.730