1	0NP	2',3'-dideoxy-2'-fluoro-3'-triaza-1,2-dien-2-ium-1-yluridine	1.000
2	AZZ	3'-azido-3'-deoxythymidine	0.900
3	U7I	2'-deoxy-2'-fluoro-2'-methyluridine	0.762
4	Y7U	2',2'-difluorodeoxyuridine	0.762
5	38S	1-[(2r,5s)-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methylpyrimidine-2,4(1h,3h)-dione	0.750
6	DUR	2'-deoxyuridine	0.750
7	THU	Tetrahydrodeoxyuridine	0.750
8	FDU	1-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl)-5-ethynylpyrimidine-2,4(1h,3h)-dione	0.727
9	ID2	5-iododeoxyuridine	0.714
10	LLT	L-deoxythymidine	0.714
11	THM	Thymidine	0.714
12	TYU	Tetrahydrouridine	0.714
13	U33	5-bromo-2'-deoxy uridine	0.714
14	URI	Uridine	0.714
15	ZEB	4-hydroxy-3,4-dihydro-zebularine	0.714
16	DDU	2'-5'dideoxyuridine	0.700