1	DZ4	2'-deoxy-5'-O-[(R)-hydroxy{[(R)-hydroxy(phosphonooxy)phosphoryl]amino}phosphoryl]adenosine	1.000
2	ZAN	5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]amino}phosphoryl]adenosine	0.968
3	XG4	2'-deoxy-5'-O-[(R)-hydroxy{[(R)-hydroxy(phosphonooxy)phosphoryl]amino}phosphoryl]guanosine	0.906
4	0KX	2'-deoxy-5'-O-[(R)-hydroxy{[(R)-hydroxy(phosphonooxy)phosphoryl]amino}phosphoryl]cytidine	0.812
5	A0I	[(2~{R},3~{S},4~{R},5~{R})-5-(4-azanyl-2-oxidanylidene-pyrimidin-1-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-~{N}-[oxidanyl(phosphonooxy)phosphoryl]phosphonamidic acid	0.788
6	AU1	5'-O-[(R)-hydroxy(phosphonoamino)phosphoryl]adenosine	0.781
7	DUP	2'-deoxyuridine 5'-alpha,beta-imido-triphosphate	0.758
8	1FZ	5'-O-[(R)-hydroxy{[(R)-hydroxy(phosphonooxy)phosphoryl]amino}phosphoryl]thymidine	0.735
9	2KH	5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]amino}phosphoryl]uridine	0.735