1 FDY 5'-O-[(R)-{[(R)-[(R)-fluoro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]thymidine 1.000 2 VT6 5'-O-[(R)-{[(R)-[(S)-chloro(fluoro)phosphonomethyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]thymidine 0.968 3 VT7 5'-O-[(R)-{[(R)-[difluoro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]thymidine 0.968 4 TTE Phosphomethyl phosphonic acid deoxythymidylate ester 0.967 5 EJH [(~{S})-chloranyl-[[[(2~{R},3~{S},5~{R})-5-[5-methyl-2,4-bis(oxidanylidene)pyrimidin-1-yl]-3-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl]oxy-oxidanyl-phosphoryl]methyl]phosphonic acid 0.935 6 FDJ 5'-O-[(R)-{[(R)-[(R)-chloro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]thymidine 0.935 7 FDV 5'-O-[(R)-hydroxy({(R)-hydroxy[(1s)-1-phosphonoethyl]phosphoryl}oxy)phosphoryl]thymidine 0.935 8 VT8 5'-O-[(R)-{[(R)-[dichloro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]thymidine 0.906 9 F3C 2'-deoxy-5'-O-[(R)-{[(R)-[(R)-fluoro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]cytidine 0.903 10 FF4 2'-deoxy-5'-O-[(R)-{[(R)-[(S)-fluoro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]cytidine 0.903 11 FFJ 2'-deoxy-5'-O-[(R)-{[(R)-[difluoro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]cytidine 0.875 12 VC6 4-amino-1-{5-O-[(R)-{[(R)-[(S)-chloro(fluoro)phosphonomethyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]-2-deoxy-alpha-L-threo-pentofuranosyl}pyrimidin-2(1h)-one 0.875 13 SFV [[[(2~{R},3~{S},5~{R})-5-(4-azanyl-2-oxidanylidene-pyrimidin-1-yl)-3-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl]oxy-oxidanyl-phosphoryl]methylphosphonic acid 0.871 14 DJJ 5'-O-[(R)-{[(R)-[(S)-chloro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]-2'-deoxycytidine 0.844 15 FF7 5'-O-[(R)-{[(R)-[(R)-chloro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]-2'-deoxycytidine 0.844 16 VC8 4-amino-1-{2-deoxy-5-O-[(R)-{[(R)-[dichloro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]-alpha-L-threo-pentofuranosyl}pyrimidin-2(1h)-one 0.818 17 VC9 2'-deoxy-5'-O-[(R)-{[(R)-[dibromo(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]cytidine 0.818 18 TYD Thymidine-5'-diphosphate 0.774 19 FHG 2'-deoxy-5'-O-[(R)-{[(R)-[(S)-fluoro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]guanosine 0.771 20 GFH 2'-deoxy-5'-O-[(R)-{[(R)-[(R)-fluoro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]guanosine 0.771 21 GFC 5'-O-[(S)-{[(S)-[(S)-chloro(fluoro)phosphonomethyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]-2'-deoxyguanosine 0.750 22 GFF 2'-deoxy-5'-O-[({[difluoro(phosphono)methyl](hydroxy)phosphoryl}oxy)(hydroxy)phosphoryl]guanosine 0.750 23 GFM 2'-deoxy-5'-O-[(S)-{[(S)-[(1r)-1-fluoro-1-phosphonoethyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]guanosine 0.750 24 GGH 2'-deoxy-5'-O-(hydroxy{[hydroxy(phosphonomethyl)phosphoryl]oxy}phosphoryl)guanosine 0.743 25 V3A 9-{2-deoxy-5-O-[(R)-{[(R)-[(R)-fluoro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]-alpha-D-erythro-pentofuranosyl}-9h-purin-6-amine 0.743 26 D4D 2',3'-dehydro-2',3'-deoxy-thymidine 5'-diphosphate 0.742 27 DUD Deoxyuridine-5'-diphosphate 0.742 28 G1C 5'-O-[(R)-{[(S)-[(S)-chloro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]-2'-deoxyguanosine 0.722 29 G1M 2'-deoxy-5'-O-[(R)-hydroxy({(S)-hydroxy[(1r)-1-phosphonoethyl]phosphoryl}oxy)phosphoryl]guanosine 0.722 30 GBR 5'-O-[(R)-{[(S)-[(R)-bromo(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]-2'-deoxyguanosine 0.722 31 GCP Phosphomethylphosphonic acid guanylate ester 0.722 32 GRC 5'-O-[(R)-{[(R)-[(R)-chloro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]-2'-deoxyguanosine 0.722 33 VA5 9-{5-O-[(R)-{[(R)-[(S)-chloro(fluoro)phosphonomethyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]-2-deoxy-alpha-D-threo-pentofuranosyl}-9h-purin-6-amine 0.722 34 VA6 9-{2-deoxy-5-O-[(S)-{[(S)-[difluoro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]-alpha-D-erythro-pentofuranosyl}-9h-purin-6-amine 0.722 35 TBD 2*-deoxy-thymidine-5*-alpha borano diphosphate (isomer rp) 0.719 36 UDP Uridine-5'-diphosphate 0.719 37 FCJ 2'-deoxy-5'-O-[(R)-hydroxy{[(R)-hydroxy(phosphonomethyl)phosphoryl]oxy}phosphoryl]adenosine 0.714 38 ATF Phosphodifluoromethylphosphonic acid-adenylate ester 0.703 39 G2C 2'-deoxy-5'-O-[(S)-{[(R)-[dichloro(phosphono)methyl](hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]guanosine 0.703 40 G2M 2'-deoxy-5'-O-[(S)-hydroxy{[(S)-hydroxy(1-methyl-1-phosphonoethyl)phosphoryl]oxy}phosphoryl]guanosine 0.703