1 C31 2'-O-3-aminopropyl cytidine-5'-monophosphate 1.000 2 U31 2'-O-3-aminopropyl 2'-deoxyuridine-5'-monophosphate 0.923 3 OMC O2'-methylycytidine-5'-monophosphate 0.880 4 XE6 4-amino-1-(2-O-methyl-5-O-phosphono-beta-L-ribofuranosyl)pyrimidin-2(1h)-one 0.880 5 2AT 2'-O-allyl thymidine-5'-monophosphate 0.852 6 2GT 2'-O-propargyl thymidine-5'-monophosphate 0.852 7 C43 2'-O-methyoxyethyl-cytidine-5'-monophosphate 0.852 8 P2T 2'-O-propyl thymidine-5-monophosphate 0.852 9 JMC [(2~{R},3~{R},4~{R},5~{R})-5-(4-azanyl-3-methyl-2-oxidanylidene-4~{H}-pyrimidin-1-yl)-4-methoxy-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphate 0.846 10 2BT 2'-O-butyl-thymidine 0.821 11 C5L 2'-O-(2-methoxyethyl)-5-methylcytidine 5'-(dihydrogen phosphate) 0.821 12 6OO 2'-O-methyl-5'-O-thiophosphonocytidine 0.808 13 OKQ 2'-O-methylcytidine-5'-phosphorothioate 0.808 14 OMU O2'-methyluridine 5'-monophosphate 0.808 15 XEC 1-(2-O-methyl-5-O-phosphono-beta-L-ribofuranosyl)pyrimidine-2,4(1h,3h)-dione 0.808 16 0DC 2'-deoxy-L-ribo-furanosyl cytosine-5'-monophosphate 0.800 17 DC 2'-deoxycytidine-5'-monophosphate 0.800 18 DCM 2'-deoxycytidine-5'-monophosphate 0.800 19 DNR 2'-deoxy-n3-protonated cytidine-5'-monophosphate 0.800 20 IY9 [5-(4-azanyl-2-oxidanylidene-pyrimidin-1-yl)-3-oxidanyl-furan-2-yl]methyl dihydrogen phosphate 0.800 21 XC [(2~{R},3~{R},5~{R})-5-(6-azanyl-2-oxidanylidene-4,5-dihydropyrimidin-3-yl)-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphate 0.800 22 125 2'-O-fluoroethyl-5-methyl-uridine-5'-monophosphate 0.786 23 B9H 2'-methyl, 3-propyl, cytidine-5'-monophosphate 0.786 24 U36 2'-O-methyoxyethyl-uridine-5'-monophosphate 0.786 25 2MU 2',5-dimethyluridine-5'-monophosphate 0.778 26 4OC 4n,o2'-methylcytidine-5'-monophosphate 0.778 27 T41 1-(2-O-methyl-beta-D-arabinofuranosyl)thymidine 5'-monophosphate 0.778 28 0C L-cytidine-5'-monophosphate 0.769 29 2GF [(2r,5r)-5-(4-amino-5-chloro-2-oxopyrimidin-1(2h)-yl)-3-oxotetrahydrofuran-2-yl]methyl dihydrogen phosphate 0.769 30 4U3 5-chloro-2'-deoxycytidine 5'-(dihydrogen phosphate) 0.769 31 5CM 5-methyl-2'-deoxy-cytidine-5'-monophosphate 0.769 32 5OC 2'-deoxy-5-hydroxycytidine 5'-(dihydrogen phosphate) 0.769 33 8XC 4-amino-1-(5-O-phosphono-beta-D-xylofuranosyl)pyrimidin-2(1h)-one 0.769 34 A5M 2'-amine-cytidine-5'-monophosphate 0.769 35 C Cytidine-5'-monophosphate 0.769 36 C37 5-fluoro-2'-deoxy-cytidine-5'-monophosphate 0.769 37 C38 5-iodo-2'-deoxy-cytidine-5'-monophosphate 0.769 38 C5P Cytidine-5'-monophosphate 0.769 39 CAR Cytosine arabinose-5'-phosphate 0.769 40 CBR 5-bromo-2'-deoxy-cytidine-5'-monophosphate 0.769 41 CFL 4-amino-1-(2-deoxy-2-fluoro-5-O-phosphono-beta-D-arabinofuranosyl)pyrimidin-2(1h)-one 0.769 42 CFZ 2'-deoxy-2'-fluorocytidine 5'-(dihydrogen phosphate) 0.769 43 CH N3-protonated cytidine-5'-monophosphate 0.769 44 IY0 [5-(4-azanyl-2-oxidanylidene-pyrimidin-1-yl)-3,4-bis(oxidanyl)furan-2-yl]methyl dihydrogen phosphate 0.769 45 ME6 [(2r,3s,5r)-5-(4-azanyl-3-methyl-2-oxo-pyrimidin-3-ium-1-yl)-3-hydroxy-oxolan-2-yl]methyl dihydrogen phosphate 0.769 46 OFC 4-amino-1-(2-deoxy-2-fluoro-5-O-phosphono-beta-L-ribofuranosyl)pyrimidin-2(1h)-one 0.769 47 RY 5'-3,6-dihydrocytidylic acid 0.769 48 U48 5-methyl-2'-deoxy-n3-protonated cytidine-5'-monophosphate 0.769 49 DOC 2',3'-dideoxycytidine-5'-monophosphate 0.760 50 Z 1-(2-deoxy-5-O-phosphono-beta-D-erythro-pentofuranosyl)pyrimidin-2(1h)-one 0.760 51 127 2'-O-aminooxy-ethyl-5-methyl-uridine-5'-monophosphate 0.759 52 5JO 2'-O-prop-2-yn-1-yladenosine 5'-(dihydrogen phosphate) 0.759 53 N7X 5'-O-[(R)-hydroxy(sulfanylidene)-lambda~5~-phosphanyl]-2'-O-(2-methoxyethyl)-5-methylcytidine 0.759 54 SMT 2'-[(methylthio)ethyloxy]-thymidine-5'-monophosphate 0.759 55 T39 2'-O-methoxyethylene thymidine 5'-monophosphate 0.759 56 QSK [(2~{R},3~{R},4~{R},5~{R})-5-(4-azanyl-2-oxidanylidene-pyrimidin-1-yl)-3-oxidanyl-4-(trifluoromethyloxy)oxolan-2-yl]methoxyphosphinic acid 0.750 57 UOA [(2r,3s,4r,5r)-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2h)-yl)-3-hydroxy-2,4-dimethoxytetrahydrofuran-2-yl]methyl dihydrogen phosphate (non-preferred name) 0.750 58 UOB 2'-ome,4'beta-ome uridine 5'-(dihydrogen phosphate) 0.750 59 10C 4-amino-1-{2,5-anhydro-4-[(phosphonooxy)methyl]-alpha-L-lyxofuranosyl}pyrimidin-2(1h)-one 0.741 60 5CF 5-fluorocytidine 5'-(dihydrogen phosphate) 0.741 61 5FC 5-formyl-2'-deoxy-cytidine-5'-monophosphate 0.741 62 5HC 2'-deoxy-5-(hydroxymethyl)cytidine 5'-(dihydrogen phosphate) 0.741 63 5IC 5-iodo-cytidine-5'-monophosphate 0.741 64 5MC 5-methylcytidine-5'-monophosphate 0.741 65 5SE 2'-deoxy-5-(methylselanyl)cytidine 5'-(dihydrogen phosphate) 0.741 66 B8Q 3-methyl, cytidine-5'-monophosphate 0.741 67 CBV 5-bromocytidine 5'-(dihydrogen phosphate) 0.741 68 CSL (D)-2'-methylselenyl-2'-deoxycytidine-5'-phosphate 0.741 69 JMH 3-methylcytidine- 5'-monophosphate 0.741 70 MDQ 2'-deoxy-3-(oxidomethyl)cytidine 5'-(dihydrogen phosphate) 0.741 71 OKT 2'-O-methyluridine-5'-phosphorothioate 0.741 72 TKW 5-hydroxycytidine 5'-(dihydrogen phosphate) 0.741 73 U7B 2'-deoxy-2'2'-difluorodeoxycytidine 0.741 74 NMS 1-(o2-(2-methylamino-2-oxo-ethyl)-o5-hydroxyphosphinyl-beta-D-ribofuranosyl)thymine 0.733 75 TFE 2'-O-[2-(trifluoro)ethyl] thymidine-5'-monophosphate 0.733 76 3KA 1-(2-deoxy-5-O-phosphono-beta-L-erythro-pentofuranosyl)pyrimidine-2,4(1h,3h)-dione 0.731 77 5NC 5-aza-cytidine-5'monophosphate 0.731 78 5PY 1-(2'-deoxy-5'-O-phosphono-beta-D-erythro-pentofuranosyl)-5-methylpyrimidin-2(1h)-one 0.731 79 9L3 [(2r,3s,5r)-5-(4-azanyl-5-methyl-pyrimidin-1-ium-1-yl)-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphate 0.731 80 C42 3'-amino-2'-deoxy-cytidine-5'-monophosphate 0.731 81 C4S 2'-deoxy-4'-thiocytidine 5'-(dihydrogen phosphate) 0.731 82 C7R 2'-deoxy-5'-O-thiophosphonocytidine 0.731 83 C7S 2'-deoxy-5'-O-thiophosphonocytidine 0.731 84 CMR 2'-deoxy-cytidine-5'-rp-monomethylphosphonate 0.731 85 DDN 3,4-dihydro-2'-deoxyuridine-5'-monophosphate 0.731 86 DU 2'-deoxyuridine-5'-monophosphate 0.731 87 O2C 3'-deoxy-cytidine-5'-monophosphate 0.731 88 PYO 1-(beta-D-ribofuranosyl)-pyrimidin-2-one-5'-phosphate 0.731 89 SC 2-deoxy-cytidine-5'-thiophosphorate 0.731 90 UMC 2'-deoxy-5'-uridylic acid 0.731 91 UMP 2'-deoxyuridine 5'-monophosphate 0.731 92 LHH [(2~{R},3~{R},4~{R},5~{R})-5-(4-acetamido-2-oxidanylidene-pyrimidin-1-yl)-4-methoxy-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphate 0.724 93 1CC 5-carboxy-2'-deoxycytidine monophosphate 0.714 94 5HM 5-(hydroxymethyl)cytidine 5'-(dihydrogen phosphate) 0.714 95 5PC 5(1-propynyl)-2'-deoxycytidine-5'-monophosphate 0.714 96 C36 5-methyl-5-fluoro-2'-deoxy-cytidine-5'-monophosphate 0.714 97 C49 4-thio,5-fluoro,5-methyl-2'-deoxy-cytidine-5'-monophosphate 0.714 98 E3C 3-ethyl, cytidine-5'-monophosphate 0.714 99 EIX [(2r,3s,5s)-5-[(4r,5r)-6-azanyl-5-fluoranyl-5-methyl-2-oxidanylidene-4-sulfanyl-4h-pyrimidin-3-yl]-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphate 0.714 100 KEA 2'-azido-2'-deoxycytidine 5'-(dihydrogen phosphate) 0.714 101 LCC [(1r,3r,4r,7s)-7-hydroxy-3-(5-methylcytosin-1-yl)-2,5-dioxabicyclo[2.2.1]hept-1-yl]methyl dihydrogen phosphate 0.714 102 MMX 3-ethyl-3,4,5,6-tetrahydrocytidine 5'-(dihydrogen phosphate) 0.714 103 RSQ 5-formylcytidine 5'-(dihydrogen phosphate) 0.714 104 T23 2'-O-methyl-3'-methyl-3'-deoxy-arabinofuranosyl-thymine-5'-phosphate 0.714 105 XFC 4-amino-1-(2-deoxy-2-fluoro-5-O-phosphono-beta-D-arabinofuranosyl)-2-oxo-1,2-dihydropyrimidine-5-carbaldehyde 0.714 106 2NT 2'-O-[2-[hydroxy(methyleneamino)oxy]ethyl thymidine-5'-monophosphate 0.710 107 2OT 2'-O-[2-(N,N-dimethylaminooxy)ethyl] thymidine-5'-monophosphate 0.710 108 GMU 2'-O-[(2-guanidinium)ethyl]-5-methyluridine 5'-monophosphate 0.710 109 0DT 2'-deoxy-L-ribo-furanosyl thymidine-5'-monophosphate 0.704 110 0U L-uridine-5'-monophosphate 0.704 111 1SC 5'-O-thiophosphonocytidine 0.704 112 2AU 2'-aminouridine 0.704 113 4SC 2'-deoxy-5-methyl-4'-thiocytidine 5'-(dihydrogen phosphate) 0.704 114 4SU 4-thiouridine-5'-monophosphate 0.704 115 5IU 5-iodo-2'-deoxyuridine-5'-monophosphate 0.704 116 6HC 1',5'-anhydro-2',3'-dideoxy-2'-(cytosin-1-yl)-6'-O-phosphoryl-D-arabino-hexitol 0.704 117 7K8 [(2~{R},3~{S},5~{R})-5-[(4~{E})-4-hydroxyimino-2-oxidanylidene-1,3-diazinan-1-yl]-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphate 0.704 118 8XU 1-(5-O-phosphono-beta-D-xylofuranosyl)pyrimidine-2,4(1h,3h)-dione 0.704 119 BRU 5-bromo-2'-deoxyuridine-5'-monophosphate 0.704 120 C34 N4-methyl-2'-deoxy-cytidine-5'-monophosphate 0.704 121 DT Thymidine-5'-monophosphate 0.704 122 EW3 [(2~{R},3~{R},4~{R},5~{R})-5-[2,4-bis(oxidanylidene)-1,3-diazinan-1-yl]-4-fluoranyl-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphate 0.704 123 H2U 5,6-dihydrouridine-5'-monophosphate 0.704 124 IKS [(2~{R},3~{S},4~{R},5~{R})-5-(4-azanyl-2-oxidanylidene-pyrimidin-1-yl)-3,4-bis(oxidanyl)selenolan-2-yl]methyl dihydrogen phosphate 0.704 125 MDK 4-amino-1-(2-deoxy-5-O-phosphono-beta-D-erythro-pentofuranosyl)-3-methylpyridin-2(1h)-one 0.704 126 NOH 2'-deoxy-N-hydroxycytidine 5'-(dihydrogen phosphate) 0.704 127 OHU 2'-deoxy-5-hydroxyuridine 5'-(dihydrogen phosphate) 0.704 128 OKN 5'-methyl-2'-deoxycytidine-5'-phosphorothioate 0.704 129 PBT [3-hydroxy-5-(5-methyl-2,4-dioxotetrahydro-1(2h)-pyrimidinyl)tetrahydro-2-furanyl]methyl dihydrogen phosphate 0.704 130 QBT [(2r,3s,5r)-3-hydroxy-5-[(5s)-5-methyl-2,4-dioxo-1,3-diazinan-1-yl]oxolan-2-yl]methyl dihydrogen phosphate 0.704 131 RSP 4-amino-1-(5-O-phosphono-beta-D-ribofuranosyl)pyrimidine-2(1h)-thione 0.704 132 S4C 4'-thio-4'-deoxy-cytosine-5'-monophosphate 0.704 133 T4S 1-(2-deoxy-5-O-phosphono-beta-D-erythro-pentofuranosyl)-4-hydroseleno-5-methylpyrimidin-2(1h)-one 0.704 134 TJU [(2~{R},3~{S},5~{R})-5-(4-azanyl-3-methyl-6-oxidanylidene-2~{H}-1,3,5-triazin-1-yl)-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphite 0.704 135 TMP Thymidine-5'-phosphate 0.704 136 TTI 2'-deoxy-5-telluroxouridine 5'-(dihydrogen phosphate) 0.704 137 U Uridine-5'-monophosphate 0.704 138 U5P Uridine-5'-monophosphate 0.704 139 UAR Uracil arabinose-5'-phosphate 0.704 140 UCL 5-chloro-2'-deoxyuridine 5'-(dihydrogen phosphate) 0.704 141 UF2 1-(2-deoxy-2-fluoro-5-O-phosphono-beta-D-arabinofuranosyl)pyrimidine-2,4(1h,3h)-dione 0.704 142 UFP 5-fluoro-2'-deoxyuridine-5'-monophosphate 0.704 143 UFT 2'-deoxy-2'-fluorouridine 5'-(dihydrogen phosphate) 0.704 144 US5 1-(5-O-phosphono-beta-D-ribofuranosyl)-4-selanylpyrimidin-2(1h)-one 0.704 145 XCL [(1s,4r,6r)-6-hydroxy-4-(cytosin-9-yl)cyclohex-2-en-1-yl]methyl dihydrogen phosphate 0.704 146 XCR [(1r,4s,6s)-4-(4-amino-2-oxopyrimidin-1(2h)-yl)-6-hydroxycyclohex-2-en-1-yl]methyl dihydrogen phosphate 0.704 147 XCT 4-amino-1-(2,3-dideoxy-6-O-phosphono-beta-D-erythro-hexopyranosyl)pyrimidin-2(1h)-one 0.704 148 NMT 1-(o2-(methylcarbamoyl)-o5-hydroxyphosphinyl-beta-D-ribofuranosyl)thymine 0.700 149 S2M 2'-O-[2-(methoxy)ethyl]-2-thiothymidine-5'-monophosphate 0.700 150 T38 2'-O-ethoxymethylene thymidine 5'-monophosphate 0.700