1 B9H 2'-methyl, 3-propyl, cytidine-5'-monophosphate 1.000 2 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 0.920 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 E3C 3-ethyl, cytidine-5'-monophosphate 0.846 6 MMX 3-ethyl-3,4,5,6-tetrahydrocytidine 5'-(dihydrogen phosphate) 0.846 7 ME6 [(2r,3s,5r)-5-(4-azanyl-3-methyl-2-oxo-pyrimidin-3-ium-1-yl)-3-hydroxy-oxolan-2-yl]methyl dihydrogen phosphate 0.840 8 6OO 2'-O-methyl-5'-O-thiophosphonocytidine 0.808 9 B8Q 3-methyl, cytidine-5'-monophosphate 0.808 10 JMH 3-methylcytidine- 5'-monophosphate 0.808 11 MDQ 2'-deoxy-3-(oxidomethyl)cytidine 5'-(dihydrogen phosphate) 0.808 12 OKQ 2'-O-methylcytidine-5'-phosphorothioate 0.808 13 OMU O2'-methyluridine 5'-monophosphate 0.808 14 XEC 1-(2-O-methyl-5-O-phosphono-beta-L-ribofuranosyl)pyrimidine-2,4(1h,3h)-dione 0.808 15 0DC 2'-deoxy-L-ribo-furanosyl cytosine-5'-monophosphate 0.800 16 DC 2'-deoxycytidine-5'-monophosphate 0.800 17 DCM 2'-deoxycytidine-5'-monophosphate 0.800 18 DNR 2'-deoxy-n3-protonated cytidine-5'-monophosphate 0.800 19 IY9 [5-(4-azanyl-2-oxidanylidene-pyrimidin-1-yl)-3-oxidanyl-furan-2-yl]methyl dihydrogen phosphate 0.800 20 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 21 C31 2'-O-3-aminopropyl cytidine-5'-monophosphate 0.786 22 C43 2'-O-methyoxyethyl-cytidine-5'-monophosphate 0.786 23 2MU 2',5-dimethyluridine-5'-monophosphate 0.778 24 4OC 4n,o2'-methylcytidine-5'-monophosphate 0.778 25 HEU 3-(2-hydroxyethyl)-2'-deoxyuridine-5'-monophosphate 0.778 26 T41 1-(2-O-methyl-beta-D-arabinofuranosyl)thymidine 5'-monophosphate 0.778 27 TTM N3-ethyl-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 OFC 4-amino-1-(2-deoxy-2-fluoro-5-O-phosphono-beta-L-ribofuranosyl)pyrimidin-2(1h)-one 0.769 46 RY 5'-3,6-dihydrocytidylic acid 0.769 47 U48 5-methyl-2'-deoxy-n3-protonated cytidine-5'-monophosphate 0.769 48 DOC 2',3'-dideoxycytidine-5'-monophosphate 0.760 49 Z 1-(2-deoxy-5-O-phosphono-beta-D-erythro-pentofuranosyl)pyrimidin-2(1h)-one 0.760 50 C5L 2'-O-(2-methoxyethyl)-5-methylcytidine 5'-(dihydrogen phosphate) 0.759 51 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 52 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 53 UOB 2'-ome,4'beta-ome uridine 5'-(dihydrogen phosphate) 0.750 54 10C 4-amino-1-{2,5-anhydro-4-[(phosphonooxy)methyl]-alpha-L-lyxofuranosyl}pyrimidin-2(1h)-one 0.741 55 5CF 5-fluorocytidine 5'-(dihydrogen phosphate) 0.741 56 5FC 5-formyl-2'-deoxy-cytidine-5'-monophosphate 0.741 57 5HC 2'-deoxy-5-(hydroxymethyl)cytidine 5'-(dihydrogen phosphate) 0.741 58 5IC 5-iodo-cytidine-5'-monophosphate 0.741 59 5MC 5-methylcytidine-5'-monophosphate 0.741 60 5SE 2'-deoxy-5-(methylselanyl)cytidine 5'-(dihydrogen phosphate) 0.741 61 CBV 5-bromocytidine 5'-(dihydrogen phosphate) 0.741 62 CSL (D)-2'-methylselenyl-2'-deoxycytidine-5'-phosphate 0.741 63 MFT 3-methylthymidine 5'-(dihydrogen phosphate) 0.741 64 OKT 2'-O-methyluridine-5'-phosphorothioate 0.741 65 TKW 5-hydroxycytidine 5'-(dihydrogen phosphate) 0.741 66 U7B 2'-deoxy-2'2'-difluorodeoxycytidine 0.741 67 UR3 3-methyluridine-5'-monophoshate 0.741 68 3KA 1-(2-deoxy-5-O-phosphono-beta-L-erythro-pentofuranosyl)pyrimidine-2,4(1h,3h)-dione 0.731 69 5NC 5-aza-cytidine-5'monophosphate 0.731 70 5PY 1-(2'-deoxy-5'-O-phosphono-beta-D-erythro-pentofuranosyl)-5-methylpyrimidin-2(1h)-one 0.731 71 9L3 [(2r,3s,5r)-5-(4-azanyl-5-methyl-pyrimidin-1-ium-1-yl)-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphate 0.731 72 C42 3'-amino-2'-deoxy-cytidine-5'-monophosphate 0.731 73 C4S 2'-deoxy-4'-thiocytidine 5'-(dihydrogen phosphate) 0.731 74 C7R 2'-deoxy-5'-O-thiophosphonocytidine 0.731 75 C7S 2'-deoxy-5'-O-thiophosphonocytidine 0.731 76 CMR 2'-deoxy-cytidine-5'-rp-monomethylphosphonate 0.731 77 DDN 3,4-dihydro-2'-deoxyuridine-5'-monophosphate 0.731 78 DU 2'-deoxyuridine-5'-monophosphate 0.731 79 O2C 3'-deoxy-cytidine-5'-monophosphate 0.731 80 PYO 1-(beta-D-ribofuranosyl)-pyrimidin-2-one-5'-phosphate 0.731 81 SC 2-deoxy-cytidine-5'-thiophosphorate 0.731 82 UMC 2'-deoxy-5'-uridylic acid 0.731 83 UMP 2'-deoxyuridine 5'-monophosphate 0.731 84 125 2'-O-fluoroethyl-5-methyl-uridine-5'-monophosphate 0.724 85 2AT 2'-O-allyl thymidine-5'-monophosphate 0.724 86 2GT 2'-O-propargyl thymidine-5'-monophosphate 0.724 87 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 88 P2T 2'-O-propyl thymidine-5-monophosphate 0.724 89 U31 2'-O-3-aminopropyl 2'-deoxyuridine-5'-monophosphate 0.724 90 U36 2'-O-methyoxyethyl-uridine-5'-monophosphate 0.724 91 1CC 5-carboxy-2'-deoxycytidine monophosphate 0.714 92 5HM 5-(hydroxymethyl)cytidine 5'-(dihydrogen phosphate) 0.714 93 5PC 5(1-propynyl)-2'-deoxycytidine-5'-monophosphate 0.714 94 C36 5-methyl-5-fluoro-2'-deoxy-cytidine-5'-monophosphate 0.714 95 C49 4-thio,5-fluoro,5-methyl-2'-deoxy-cytidine-5'-monophosphate 0.714 96 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 97 KEA 2'-azido-2'-deoxycytidine 5'-(dihydrogen phosphate) 0.714 98 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 99 MDU 3-(hydroxymethyl)thymidine 5'-(dihydrogen phosphate) 0.714 100 RSQ 5-formylcytidine 5'-(dihydrogen phosphate) 0.714 101 T23 2'-O-methyl-3'-methyl-3'-deoxy-arabinofuranosyl-thymine-5'-phosphate 0.714 102 XFC 4-amino-1-(2-deoxy-2-fluoro-5-O-phosphono-beta-D-arabinofuranosyl)-2-oxo-1,2-dihydropyrimidine-5-carbaldehyde 0.714 103 3AU 3-[(3s)-3-amino-3-carboxypropyl]uridine 5'-(dihydrogen phosphate) 0.710 104 XSX 3-[(3r)-3-amino-3-carboxypropyl]uridine 5'-(dihydrogen phosphate) 0.710 105 0DT 2'-deoxy-L-ribo-furanosyl thymidine-5'-monophosphate 0.704 106 0U L-uridine-5'-monophosphate 0.704 107 1SC 5'-O-thiophosphonocytidine 0.704 108 2AU 2'-aminouridine 0.704 109 4SC 2'-deoxy-5-methyl-4'-thiocytidine 5'-(dihydrogen phosphate) 0.704 110 4SU 4-thiouridine-5'-monophosphate 0.704 111 5IU 5-iodo-2'-deoxyuridine-5'-monophosphate 0.704 112 6HC 1',5'-anhydro-2',3'-dideoxy-2'-(cytosin-1-yl)-6'-O-phosphoryl-D-arabino-hexitol 0.704 113 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 0.704 114 8XU 1-(5-O-phosphono-beta-D-xylofuranosyl)pyrimidine-2,4(1h,3h)-dione 0.704 115 BRU 5-bromo-2'-deoxyuridine-5'-monophosphate 0.704 116 C34 N4-methyl-2'-deoxy-cytidine-5'-monophosphate 0.704 117 DT Thymidine-5'-monophosphate 0.704 118 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 0.704 119 H2U 5,6-dihydrouridine-5'-monophosphate 0.704 120 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 0.704 121 MDK 4-amino-1-(2-deoxy-5-O-phosphono-beta-D-erythro-pentofuranosyl)-3-methylpyridin-2(1h)-one 0.704 122 NOH 2'-deoxy-N-hydroxycytidine 5'-(dihydrogen phosphate) 0.704 123 OHU 2'-deoxy-5-hydroxyuridine 5'-(dihydrogen phosphate) 0.704 124 OKN 5'-methyl-2'-deoxycytidine-5'-phosphorothioate 0.704 125 PBT [3-hydroxy-5-(5-methyl-2,4-dioxotetrahydro-1(2h)-pyrimidinyl)tetrahydro-2-furanyl]methyl dihydrogen phosphate 0.704 126 QBT [(2r,3s,5r)-3-hydroxy-5-[(5s)-5-methyl-2,4-dioxo-1,3-diazinan-1-yl]oxolan-2-yl]methyl dihydrogen phosphate 0.704 127 RSP 4-amino-1-(5-O-phosphono-beta-D-ribofuranosyl)pyrimidine-2(1h)-thione 0.704 128 S4C 4'-thio-4'-deoxy-cytosine-5'-monophosphate 0.704 129 T4S 1-(2-deoxy-5-O-phosphono-beta-D-erythro-pentofuranosyl)-4-hydroseleno-5-methylpyrimidin-2(1h)-one 0.704 130 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 0.704 131 TMP Thymidine-5'-phosphate 0.704 132 TTI 2'-deoxy-5-telluroxouridine 5'-(dihydrogen phosphate) 0.704 133 U Uridine-5'-monophosphate 0.704 134 U5P Uridine-5'-monophosphate 0.704 135 UAR Uracil arabinose-5'-phosphate 0.704 136 UCL 5-chloro-2'-deoxyuridine 5'-(dihydrogen phosphate) 0.704 137 UF2 1-(2-deoxy-2-fluoro-5-O-phosphono-beta-D-arabinofuranosyl)pyrimidine-2,4(1h,3h)-dione 0.704 138 UFP 5-fluoro-2'-deoxyuridine-5'-monophosphate 0.704 139 UFT 2'-deoxy-2'-fluorouridine 5'-(dihydrogen phosphate) 0.704 140 US5 1-(5-O-phosphono-beta-D-ribofuranosyl)-4-selanylpyrimidin-2(1h)-one 0.704 141 XCL [(1s,4r,6r)-6-hydroxy-4-(cytosin-9-yl)cyclohex-2-en-1-yl]methyl dihydrogen phosphate 0.704 142 XCR [(1r,4s,6s)-4-(4-amino-2-oxopyrimidin-1(2h)-yl)-6-hydroxycyclohex-2-en-1-yl]methyl dihydrogen phosphate 0.704 143 XCT 4-amino-1-(2,3-dideoxy-6-O-phosphono-beta-D-erythro-hexopyranosyl)pyrimidin-2(1h)-one 0.704 144 127 2'-O-aminooxy-ethyl-5-methyl-uridine-5'-monophosphate 0.700 145 2BT 2'-O-butyl-thymidine 0.700 146 N7X 5'-O-[(R)-hydroxy(sulfanylidene)-lambda~5~-phosphanyl]-2'-O-(2-methoxyethyl)-5-methylcytidine 0.700 147 NMT 1-(o2-(methylcarbamoyl)-o5-hydroxyphosphinyl-beta-D-ribofuranosyl)thymine 0.700 148 SMT 2'-[(methylthio)ethyloxy]-thymidine-5'-monophosphate 0.700 149 T38 2'-O-ethoxymethylene thymidine 5'-monophosphate 0.700 150 T39 2'-O-methoxyethylene thymidine 5'-monophosphate 0.700