1	UZ0	2'-azido-2'-deoxyuridine	1.000
2	P6D	2'-azidocytidine	0.900
3	DUR	2'-deoxyuridine	0.842
4	THU	Tetrahydrodeoxyuridine	0.842
5	ID2	5-iododeoxyuridine	0.800
6	LLT	L-deoxythymidine	0.800
7	THM	Thymidine	0.800
8	TYU	Tetrahydrouridine	0.800
9	U33	5-bromo-2'-deoxy uridine	0.800
10	URI	Uridine	0.800
11	ZEB	4-hydroxy-3,4-dihydro-zebularine	0.800
12	DDU	2'-5'dideoxyuridine	0.789
13	38T	5-methyluridine	0.762
14	3DT	3-methylthymidine	0.762
15	5HT	5-hydroxy-thymidine	0.762
16	5UD	5-fluorouridine	0.762
17	EDU	2'-deoxy-5-ethynyluridine	0.762
18	U7I	2'-deoxy-2'-fluoro-2'-methyluridine	0.762
19	UUA	Uridine uronic acid	0.762
20	Y7U	2',2'-difluorodeoxyuridine	0.762
21	YC6	1-(2-deoxy-alpha-D-erythro-pentofuranosyl)-5-methylpyrimidine-2,4(1h,3h)-dione	0.762
22	38S	1-[(2r,5s)-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methylpyrimidine-2,4(1h,3h)-dione	0.750
23	ANU	2,2'-anhydro-(1-beta-D-arabinofuranosyl)uracil	0.750
24	BJE	2,2'-anhydro-(1-beta-D-ribofuranosyl)uracil	0.750
25	D3Z	1-(5-deoxy-beta-L-xylofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.750
26	DCZ	2'-deoxycytidine	0.750
27	DHZ	3,4-dihydro-1h-pyrimidin-2-one nucleoside	0.750
28	LDC	4-amino-1-(2-deoxy-beta-L-erythro-pentofuranosyl)pyrimidin-2(1h)-one	0.750
29	U4P	5'-deoxyuridine	0.750
30	UZR	2'-deoxy-2'-triaza-1,2-dien-2-ium-1-yl-uridine-5'-monophosphate	0.750
31	ZE8	Zebularine	0.750
32	BVD	5-bromovinyldeoxyuridine	0.727
33	EDV	1-(2-deoxy-2-methyl-beta-D-arabinofuranosyl)-5-ethynylpyrimidine-2,4(1h,3h)-dione	0.727
34	FDU	1-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl)-5-ethynylpyrimidine-2,4(1h,3h)-dione	0.727
35	0DN	5'-deoxy-5'-fluorothymidine	0.714
36	2TU	1-(beta-D-ribofuranosyl)-2-thioxo-2,3-dihydropyrimidin-4(1h)-one	0.714
37	5AT	5'-amino-5'-deoxythymidine	0.714
38	5BT	5-bromo-2'-deoxycytidine	0.714
39	AR3	Cytarabine	0.714
40	B86	2'-deoxy-5-fluorocytidine	0.714
41	CTN	4-amino-1-beta-D-ribofuranosyl-2(1h)-pyrimidinone	0.714
42	MCY	5-methyl-2'-deoxycytidine	0.714
43	URD	1-((2r,3r,4s,5r)-tetrahydro-3,4-dihydroxy-5-(hydroxymethyl)furan-2-yl)pyridine-2,4(1h,3h)-dione	0.714
44	WUV	5'-thiothymidine	0.714