1	4BD	5'-O-[(S)-{difluoro[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}(hydroxy)phosphoryl]thymidine	1.000
2	6CF	2'-deoxy-5'-O-[(S)-{difluoro[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}(hydroxy)phosphoryl]cytidine	0.906
3	UPC	2'-deoxy-5'-O-[(R)-hydroxy{[(R)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]uridine	0.903
4	WSB	5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]uridine	0.875
5	XC5	2'-deoxy-5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]cytidine	0.844
6	2TM	5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]cytidine	0.818
7	F3A	2'-deoxy-5'-O-[(S)-{difluoro[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}(hydroxy)phosphoryl]adenosine	0.750
8	1GC	2'-deoxy-5'-O-[(R)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]guanosine	0.722
9	FHA	2'-deoxy-5'-O-[(S)-{(S)-fluoro[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}(hydroxy)phosphoryl]adenosine	0.722
10	UC5	2'-deoxy-5'-O-[(S)-hydroxy(phosphonomethyl)phosphoryl]uridine	0.719
11	8BU	[(2r,3s,4r,5r)-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-[(S)-fluoranyl-[oxidanyl(phosphonooxy)phosphoryl]methyl]phosphinic acid	0.703
12	G2P	Phosphomethylphosphonic acid guanylate ester	0.703