1	SCT	(south)-methanocarba-thymidine	1.000
2	TMC	1-[4-hydroxy-5-(hydroxymethyl)bicyclo[3.1.0]hex-2-yl]-5-methylpyrimidine-2,4(1h,3h)-dione	0.895
3	LLT	L-deoxythymidine	0.842
4	THM	Thymidine	0.842
5	38T	5-methyluridine	0.800
6	3DT	3-methylthymidine	0.800
7	5HT	5-hydroxy-thymidine	0.800
8	AHU	1',5'-anhydro-2',3'-dideoxy-2'-(5-iodouracil-1-yl)-D-ababino-hexitol	0.800
9	EDU	2'-deoxy-5-ethynyluridine	0.800
10	YC6	1-(2-deoxy-alpha-D-erythro-pentofuranosyl)-5-methylpyrimidine-2,4(1h,3h)-dione	0.800
11	38S	1-[(2r,5s)-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methylpyrimidine-2,4(1h,3h)-dione	0.789
12	DUR	2'-deoxyuridine	0.789
13	THU	Tetrahydrodeoxyuridine	0.789
14	BVD	5-bromovinyldeoxyuridine	0.762
15	EDV	1-(2-deoxy-2-methyl-beta-D-arabinofuranosyl)-5-ethynylpyrimidine-2,4(1h,3h)-dione	0.762
16	FDU	1-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl)-5-ethynylpyrimidine-2,4(1h,3h)-dione	0.762
17	0DN	5'-deoxy-5'-fluorothymidine	0.750
18	5AT	5'-amino-5'-deoxythymidine	0.750
19	ID2	5-iododeoxyuridine	0.750
20	MCY	5-methyl-2'-deoxycytidine	0.750
21	TYU	Tetrahydrouridine	0.750
22	U33	5-bromo-2'-deoxy uridine	0.750
23	URI	Uridine	0.750
24	WUV	5'-thiothymidine	0.750
25	ZEB	4-hydroxy-3,4-dihydro-zebularine	0.750
26	DDU	2'-5'dideoxyuridine	0.737
27	F2U	2'-deoxy-5-ethynyl-2',2'-difluorouridine	0.727
28	5UD	5-fluorouridine	0.714
29	TCP	5'-methylthymidine	0.714
30	U7I	2'-deoxy-2'-fluoro-2'-methyluridine	0.714
31	UUA	Uridine uronic acid	0.714
32	Y7U	2',2'-difluorodeoxyuridine	0.714
33	ANU	2,2'-anhydro-(1-beta-D-arabinofuranosyl)uracil	0.700
34	BJE	2,2'-anhydro-(1-beta-D-ribofuranosyl)uracil	0.700
35	D3Z	1-(5-deoxy-beta-L-xylofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.700
36	DCZ	2'-deoxycytidine	0.700
37	DHZ	3,4-dihydro-1h-pyrimidin-2-one nucleoside	0.700
38	LDC	4-amino-1-(2-deoxy-beta-L-erythro-pentofuranosyl)pyrimidin-2(1h)-one	0.700
39	U4P	5'-deoxyuridine	0.700
40	ZE8	Zebularine	0.700