1 FHA 2'-deoxy-5'-O-[(S)-{(S)-fluoro[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}(hydroxy)phosphoryl]adenosine 1.000 2 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 0.969 3 F3A 2'-deoxy-5'-O-[(S)-{difluoro[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}(hydroxy)phosphoryl]adenosine 0.969 4 F2A 2'-deoxy-5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]adenosine 0.968 5 APC Diphosphomethylphosphonic acid adenosyl ester 0.938 6 DOU [(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-[[oxidanyl(phosphonooxy)phosphoryl]methyl]phosphinic acid 0.938 7 1GC 2'-deoxy-5'-O-[(R)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]guanosine 0.879 8 G2P Phosphomethylphosphonic acid guanylate ester 0.853 9 6CF 2'-deoxy-5'-O-[(S)-{difluoro[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}(hydroxy)phosphoryl]cytidine 0.794 10 XC5 2'-deoxy-5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]cytidine 0.788 11 2TM 5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]cytidine 0.765 12 A12 Phosphomethylphosphonic acid adenosyl ester 0.758 13 AP2 Phosphomethylphosphonic acid adenosyl ester 0.758 14 8C6 [(R)-[[(2r,3s,4r,5r)-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]-chloranyl-methyl]phosphonic acid 0.735 15 NYW [[(2~{R},3~{S},4~{R},5~{R})-5-[2,6-bis(azanyl)purin-9-yl]-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]methylphosphonic acid 0.735 16 NYZ [[(2~{R},3~{S},4~{R},5~{R})-5-(6-azanyl-2-oxidanylidene-3~{H}-purin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]methylphosphonic acid 0.735 17 UPC 2'-deoxy-5'-O-[(R)-hydroxy{[(R)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]uridine 0.735 18 4BD 5'-O-[(S)-{difluoro[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}(hydroxy)phosphoryl]thymidine 0.722 19 A1ACD 1-{2-deoxy-5-O-[(R)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]-beta-D-threo-pentofuranosyl}-5-methylpyrimidine-2,4(1h,3h)-dione 0.714 20 O02 [[(2~{R},3~{S},4~{R},5~{R})-5-(6-azanyl-2-diazanyl-purin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]methylphosphonic acid 0.714 21 WSB 5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]uridine 0.714 22 RMP 2'-deoxy-adenosine-5'-rp-monomethylphosphonate 0.710 23 SMP 2'-deoxy-adenosine-5'-sp-monomethylphosphonate 0.710