1	XCI	[(2~{S},3~{S},5~{R})-5-[5-methyl-2,4-bis(oxidanylidene)pyrimidin-1-yl]-3-oxidanyl-oxolan-2-yl]methylselanylphosphonous acid	1.000
2	0DN	5'-deoxy-5'-fluorothymidine	0.762
3	5AT	5'-amino-5'-deoxythymidine	0.762
4	LLT	L-deoxythymidine	0.762
5	THM	Thymidine	0.762
6	WUV	5'-thiothymidine	0.762
7	DDU	2'-5'dideoxyuridine	0.750
8	38T	5-methyluridine	0.727
9	3DT	3-methylthymidine	0.727
10	5HT	5-hydroxy-thymidine	0.727
11	EDU	2'-deoxy-5-ethynyluridine	0.727
12	TCP	5'-methylthymidine	0.727
13	38S	1-[(2r,5s)-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methylpyrimidine-2,4(1h,3h)-dione	0.714
14	D3Z	1-(5-deoxy-beta-L-xylofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.714
15	DUR	2'-deoxyuridine	0.714
16	THU	Tetrahydrodeoxyuridine	0.714
17	U4P	5'-deoxyuridine	0.714