1	AHU	1',5'-anhydro-2',3'-dideoxy-2'-(5-iodouracil-1-yl)-D-ababino-hexitol	1.000
2	ID2	5-iododeoxyuridine	0.842
3	SCT	(south)-methanocarba-thymidine	0.800
4	DUR	2'-deoxyuridine	0.789
5	THU	Tetrahydrodeoxyuridine	0.789
6	LLT	L-deoxythymidine	0.750
7	THM	Thymidine	0.750
8	TYU	Tetrahydrouridine	0.750
9	U33	5-bromo-2'-deoxy uridine	0.750
10	URI	Uridine	0.750
11	ZEB	4-hydroxy-3,4-dihydro-zebularine	0.750
12	DDU	2'-5'dideoxyuridine	0.737
13	38T	5-methyluridine	0.714
14	3DT	3-methylthymidine	0.714
15	5HT	5-hydroxy-thymidine	0.714
16	5UD	5-fluorouridine	0.714
17	EDU	2'-deoxy-5-ethynyluridine	0.714
18	TMC	1-[4-hydroxy-5-(hydroxymethyl)bicyclo[3.1.0]hex-2-yl]-5-methylpyrimidine-2,4(1h,3h)-dione	0.714
19	U7I	2'-deoxy-2'-fluoro-2'-methyluridine	0.714
20	UUA	Uridine uronic acid	0.714
21	38S	1-[(2r,5s)-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methylpyrimidine-2,4(1h,3h)-dione	0.700
22	ANU	2,2'-anhydro-(1-beta-D-arabinofuranosyl)uracil	0.700
23	BJE	2,2'-anhydro-(1-beta-D-ribofuranosyl)uracil	0.700
24	D3Z	1-(5-deoxy-beta-L-xylofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.700
25	DCZ	2'-deoxycytidine	0.700
26	DHZ	3,4-dihydro-1h-pyrimidin-2-one nucleoside	0.700
27	LDC	4-amino-1-(2-deoxy-beta-L-erythro-pentofuranosyl)pyrimidin-2(1h)-one	0.700
28	U4P	5'-deoxyuridine	0.700
29	ZE8	Zebularine	0.700