1 5BT 5-bromo-2'-deoxycytidine 1.000 2 DCZ 2'-deoxycytidine 0.941 3 LDC 4-amino-1-(2-deoxy-beta-L-erythro-pentofuranosyl)pyrimidin-2(1h)-one 0.941 4 AR3 Cytarabine 0.889 5 B86 2'-deoxy-5-fluorocytidine 0.889 6 CTN 4-amino-1-beta-D-ribofuranosyl-2(1h)-pyrimidinone 0.889 7 MCY 5-methyl-2'-deoxycytidine 0.889 8 U33 5-bromo-2'-deoxy uridine 0.889 9 F01 4-amino-1-[(2r,3r,4s,5r)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-fluoro-pyrimidin-2-one 0.842 10 GEO Gemcitabine 0.842 11 UZL O2'-methylycytidine 0.842 12 VVC 4-azanyl-1-[(2~{R},4~{S},5~{R})-5-ethynyl-5-(hydroxymethyl)-4-oxidanyl-oxolan-2-yl]pyrimidin-2-one 0.842 13 DHZ 3,4-dihydro-1h-pyrimidin-2-one nucleoside 0.833 14 DUR 2'-deoxyuridine 0.833 15 THU Tetrahydrodeoxyuridine 0.833 16 ZE8 Zebularine 0.833 17 LKC 4-amino-1-[(1s,3r,4r,7s)-7-hydroxy-1-(hydroxymethyl)-2,5-dioxabicyclo[2.2.1]hept-3-yl]-5-methylpyrimidin-2(1h)-one 0.800 18 P6D 2'-azidocytidine 0.800 19 5AE 4-amino-1-(beta-D-ribofuranosyl)-1,3,5-triazin-2(1h)-one 0.789 20 CTD 3-deazacytidine 0.789 21 I5A 5'-deoxy-5'-iodocytidine 0.789 22 ID2 5-iododeoxyuridine 0.789 23 LLT L-deoxythymidine 0.789 24 THM Thymidine 0.789 25 TQR 4-azanyl-1-[(2~{R},3~{R},4~{S},5~{R})-5-(hydroxymethyl)-3,4-bis(oxidanyl)thiolan-2-yl]pyrimidin-2-one 0.789 26 TYU Tetrahydrouridine 0.789 27 URI Uridine 0.789 28 ZEB 4-hydroxy-3,4-dihydro-zebularine 0.789 29 3TC 4-amino-1-[(2r,5s)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidin-2(1h)-one 0.778 30 DDU 2'-5'dideoxyuridine 0.778 31 LTT 4-amino-1-[(2s,4s)-2-(hydroxymethyl)-1,3-dioxolan-4-yl]pyrimidin-2(1h)-one 0.778 32 38T 5-methyluridine 0.750 33 3DT 3-methylthymidine 0.750 34 5HT 5-hydroxy-thymidine 0.750 35 5UD 5-fluorouridine 0.750 36 EDU 2'-deoxy-5-ethynyluridine 0.750 37 TV0 4-azanyl-1-[(2~{R},3~{R},4~{S},5~{S})-5-(hydroxymethyl)-3,4,5-tris(oxidanyl)thiolan-2-yl]pyrimidin-2-one 0.750 38 U56 N-hydroxycytidine 0.750 39 U7I 2'-deoxy-2'-fluoro-2'-methyluridine 0.750 40 UUA Uridine uronic acid 0.750 41 Y7U 2',2'-difluorodeoxyuridine 0.750 42 YC6 1-(2-deoxy-alpha-D-erythro-pentofuranosyl)-5-methylpyrimidine-2,4(1h,3h)-dione 0.750 43 38S 1-[(2r,5s)-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methylpyrimidine-2,4(1h,3h)-dione 0.737 44 ANU 2,2'-anhydro-(1-beta-D-arabinofuranosyl)uracil 0.737 45 BJE 2,2'-anhydro-(1-beta-D-ribofuranosyl)uracil 0.737 46 D3Z 1-(5-deoxy-beta-L-xylofuranosyl)pyrimidine-2,4(1h,3h)-dione 0.737 47 ETV 4-amino-5-fluoro-1-[(2r,5s)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidin-2(1h)-one 0.737 48 U4P 5'-deoxyuridine 0.737 49 C2P Cytidine-2'-monophosphate 0.727 50 CBR 5-bromo-2'-deoxy-cytidine-5'-monophosphate 0.727 51 8DA 8-oxodeoxyadenosine 0.714 52 8LK Pyrrolo-dc 0.714 53 BVD 5-bromovinyldeoxyuridine 0.714 54 C3B 4-amino-1-beta-D-glucopyranosylpyrimidin-2(1h)-one 0.714 55 DKZ 4-amino-1-(3-deoxy-3-fluoro-beta-D-glucopyranosyl)pyrimidin-2(1h)-one 0.714 56 EDV 1-(2-deoxy-2-methyl-beta-D-arabinofuranosyl)-5-ethynylpyrimidine-2,4(1h,3h)-dione 0.714 57 FDU 1-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl)-5-ethynylpyrimidine-2,4(1h,3h)-dione 0.714 58 UZ0 2'-azido-2'-deoxyuridine 0.714 59 0DN 5'-deoxy-5'-fluorothymidine 0.700 60 2TU 1-(beta-D-ribofuranosyl)-2-thioxo-2,3-dihydropyrimidin-4(1h)-one 0.700 61 5AT 5'-amino-5'-deoxythymidine 0.700 62 BRD 1-beta-ribofuranosyl-1,3-diazepinone 0.700 63 URD 1-((2r,3r,4s,5r)-tetrahydro-3,4-dihydroxy-5-(hydroxymethyl)furan-2-yl)pyridine-2,4(1h,3h)-dione 0.700 64 WUV 5'-thiothymidine 0.700