1	FDU	1-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl)-5-ethynylpyrimidine-2,4(1h,3h)-dione	1.000
2	F2U	2'-deoxy-5-ethynyl-2',2'-difluorouridine	0.950
3	EDU	2'-deoxy-5-ethynyluridine	0.947
4	BVD	5-bromovinyldeoxyuridine	0.900
5	EDV	1-(2-deoxy-2-methyl-beta-D-arabinofuranosyl)-5-ethynylpyrimidine-2,4(1h,3h)-dione	0.900
6	LLT	L-deoxythymidine	0.895
7	THM	Thymidine	0.895
8	38T	5-methyluridine	0.850
9	3DT	3-methylthymidine	0.850
10	5HT	5-hydroxy-thymidine	0.850
11	38S	1-[(2r,5s)-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methylpyrimidine-2,4(1h,3h)-dione	0.842
12	DUR	2'-deoxyuridine	0.842
13	THU	Tetrahydrodeoxyuridine	0.842
14	0DN	5'-deoxy-5'-fluorothymidine	0.800
15	5AT	5'-amino-5'-deoxythymidine	0.800
16	ID2	5-iododeoxyuridine	0.800
17	MCY	5-methyl-2'-deoxycytidine	0.800
18	TYU	Tetrahydrouridine	0.800
19	U33	5-bromo-2'-deoxy uridine	0.800
20	URI	Uridine	0.800
21	WUV	5'-thiothymidine	0.800
22	ZEB	4-hydroxy-3,4-dihydro-zebularine	0.800
23	DDU	2'-5'dideoxyuridine	0.789
24	5UD	5-fluorouridine	0.762
25	GEO	Gemcitabine	0.762
26	SCT	(south)-methanocarba-thymidine	0.762
27	TCP	5'-methylthymidine	0.762
28	TMC	1-[4-hydroxy-5-(hydroxymethyl)bicyclo[3.1.0]hex-2-yl]-5-methylpyrimidine-2,4(1h,3h)-dione	0.762
29	UUA	Uridine uronic acid	0.762
30	ANU	2,2'-anhydro-(1-beta-D-arabinofuranosyl)uracil	0.750
31	BJE	2,2'-anhydro-(1-beta-D-ribofuranosyl)uracil	0.750
32	D3Z	1-(5-deoxy-beta-L-xylofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.750
33	DCZ	2'-deoxycytidine	0.750
34	DHZ	3,4-dihydro-1h-pyrimidin-2-one nucleoside	0.750
35	LDC	4-amino-1-(2-deoxy-beta-L-erythro-pentofuranosyl)pyrimidin-2(1h)-one	0.750
36	U4P	5'-deoxyuridine	0.750
37	ZE8	Zebularine	0.750
38	D1M	5-ethynyl-1-(beta-D-glucopyranosyl)pyrimidine-2,4(1h,3h)-dione	0.739
39	0MI	1-[(2~{R},4~{S},5~{R})-5-[[(azanylidene-$L^{4}-azanylidene)amino]methyl]-4-oxidanyl-oxolan-2-yl]-5-methyl-pyrimidine-2,4-dione	0.727
40	0NP	2',3'-dideoxy-2'-fluoro-3'-triaza-1,2-dien-2-ium-1-yluridine	0.727
41	AZZ	3'-azido-3'-deoxythymidine	0.727
42	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	0.727
43	UZ0	2'-azido-2'-deoxyuridine	0.727
44	2TU	1-(beta-D-ribofuranosyl)-2-thioxo-2,3-dihydropyrimidin-4(1h)-one	0.714
45	5BT	5-bromo-2'-deoxycytidine	0.714
46	AR3	Cytarabine	0.714
47	B86	2'-deoxy-5-fluorocytidine	0.714
48	CTN	4-amino-1-beta-D-ribofuranosyl-2(1h)-pyrimidinone	0.714
49	URD	1-((2r,3r,4s,5r)-tetrahydro-3,4-dihydroxy-5-(hydroxymethyl)furan-2-yl)pyridine-2,4(1h,3h)-dione	0.714
50	JDT	2'-deoxy-5-ethyluridine 5'-(dihydrogen phosphate)	0.708
51	TAF	2'-deoxy-2'-fluoro-arabino-furanosyl thymine-5'-phosphate	0.708