1 GEO Gemcitabine 1.000 2 DCZ 2'-deoxycytidine 0.889 3 LDC 4-amino-1-(2-deoxy-beta-L-erythro-pentofuranosyl)pyrimidin-2(1h)-one 0.889 4 5BT 5-bromo-2'-deoxycytidine 0.842 5 AR3 Cytarabine 0.842 6 B86 2'-deoxy-5-fluorocytidine 0.842 7 CTN 4-amino-1-beta-D-ribofuranosyl-2(1h)-pyrimidinone 0.842 8 MCY 5-methyl-2'-deoxycytidine 0.842 9 F2U 2'-deoxy-5-ethynyl-2',2'-difluorouridine 0.810 10 F01 4-amino-1-[(2r,3r,4s,5r)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-fluoro-pyrimidin-2-one 0.800 11 U7I 2'-deoxy-2'-fluoro-2'-methyluridine 0.800 12 UZL O2'-methylycytidine 0.800 13 VVC 4-azanyl-1-[(2~{R},4~{S},5~{R})-5-ethynyl-5-(hydroxymethyl)-4-oxidanyl-oxolan-2-yl]pyrimidin-2-one 0.800 14 DHZ 3,4-dihydro-1h-pyrimidin-2-one nucleoside 0.789 15 DUR 2'-deoxyuridine 0.789 16 THU Tetrahydrodeoxyuridine 0.789 17 ZE8 Zebularine 0.789 18 FDU 1-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl)-5-ethynylpyrimidine-2,4(1h,3h)-dione 0.762 19 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 0.762 20 P6D 2'-azidocytidine 0.762 21 5AE 4-amino-1-(beta-D-ribofuranosyl)-1,3,5-triazin-2(1h)-one 0.750 22 CTD 3-deazacytidine 0.750 23 I5A 5'-deoxy-5'-iodocytidine 0.750 24 ID2 5-iododeoxyuridine 0.750 25 LLT L-deoxythymidine 0.750 26 THM Thymidine 0.750 27 TYU Tetrahydrouridine 0.750 28 U33 5-bromo-2'-deoxy uridine 0.750 29 URI Uridine 0.750 30 ZEB 4-hydroxy-3,4-dihydro-zebularine 0.750 31 U7B 2'-deoxy-2'2'-difluorodeoxycytidine 0.739 32 3TC 4-amino-1-[(2r,5s)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidin-2(1h)-one 0.737 33 DDU 2'-5'dideoxyuridine 0.737 34 LTT 4-amino-1-[(2s,4s)-2-(hydroxymethyl)-1,3-dioxolan-4-yl]pyrimidin-2(1h)-one 0.737 35 38T 5-methyluridine 0.714 36 3DT 3-methylthymidine 0.714 37 5HT 5-hydroxy-thymidine 0.714 38 5UD 5-fluorouridine 0.714 39 EDU 2'-deoxy-5-ethynyluridine 0.714 40 U56 N-hydroxycytidine 0.714 41 UUA Uridine uronic acid 0.714 42 38S 1-[(2r,5s)-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methylpyrimidine-2,4(1h,3h)-dione 0.700 43 ANU 2,2'-anhydro-(1-beta-D-arabinofuranosyl)uracil 0.700 44 BJE 2,2'-anhydro-(1-beta-D-ribofuranosyl)uracil 0.700 45 D3Z 1-(5-deoxy-beta-L-xylofuranosyl)pyrimidine-2,4(1h,3h)-dione 0.700 46 ETV 4-amino-5-fluoro-1-[(2r,5s)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidin-2(1h)-one 0.700 47 U4P 5'-deoxyuridine 0.700