1	D3Z	1-(5-deoxy-beta-L-xylofuranosyl)pyrimidine-2,4(1h,3h)-dione	1.000
2	U4P	5'-deoxyuridine	1.000
3	TYU	Tetrahydrouridine	0.941
4	URI	Uridine	0.941
5	ZEB	4-hydroxy-3,4-dihydro-zebularine	0.941
6	DDU	2'-5'dideoxyuridine	0.938
7	38T	5-methyluridine	0.889
8	5UD	5-fluorouridine	0.889
9	UUA	Uridine uronic acid	0.889
10	DHZ	3,4-dihydro-1h-pyrimidin-2-one nucleoside	0.882
11	DUR	2'-deoxyuridine	0.882
12	THU	Tetrahydrodeoxyuridine	0.882
13	ZE8	Zebularine	0.882
14	0DN	5'-deoxy-5'-fluorothymidine	0.833
15	2TU	1-(beta-D-ribofuranosyl)-2-thioxo-2,3-dihydropyrimidin-4(1h)-one	0.833
16	5AT	5'-amino-5'-deoxythymidine	0.833
17	AR3	Cytarabine	0.833
18	CTN	4-amino-1-beta-D-ribofuranosyl-2(1h)-pyrimidinone	0.833
19	I5A	5'-deoxy-5'-iodocytidine	0.833
20	ID2	5-iododeoxyuridine	0.833
21	LLT	L-deoxythymidine	0.833
22	THM	Thymidine	0.833
23	U33	5-bromo-2'-deoxy uridine	0.833
24	URD	1-((2r,3r,4s,5r)-tetrahydro-3,4-dihydroxy-5-(hydroxymethyl)furan-2-yl)pyridine-2,4(1h,3h)-dione	0.833
25	WUV	5'-thiothymidine	0.833
26	3DT	3-methylthymidine	0.789
27	5HT	5-hydroxy-thymidine	0.789
28	EDU	2'-deoxy-5-ethynyluridine	0.789
29	F01	4-amino-1-[(2r,3r,4s,5r)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-fluoro-pyrimidin-2-one	0.789
30	RDD	1-beta-D-ribofuranosyl-1,3,5-triazinane-2,4,6-trione	0.789
31	TCP	5'-methylthymidine	0.789
32	U56	N-hydroxycytidine	0.789
33	U7I	2'-deoxy-2'-fluoro-2'-methyluridine	0.789
34	Y7U	2',2'-difluorodeoxyuridine	0.789
35	YC6	1-(2-deoxy-alpha-D-erythro-pentofuranosyl)-5-methylpyrimidine-2,4(1h,3h)-dione	0.789
36	38S	1-[(2r,5s)-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methylpyrimidine-2,4(1h,3h)-dione	0.778
37	ANU	2,2'-anhydro-(1-beta-D-arabinofuranosyl)uracil	0.778
38	BJE	2,2'-anhydro-(1-beta-D-ribofuranosyl)uracil	0.778
39	DCZ	2'-deoxycytidine	0.778
40	LDC	4-amino-1-(2-deoxy-beta-L-erythro-pentofuranosyl)pyrimidin-2(1h)-one	0.778
41	S7W	Tegafur	0.765
42	0U	L-uridine-5'-monophosphate	0.762
43	8XU	1-(5-O-phosphono-beta-D-xylofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.762
44	H2U	5,6-dihydrouridine-5'-monophosphate	0.762
45	MUM	5'-O-(dihydroxyphosphanyl)-5-methyl-5,6-dihydrouridine	0.762
46	SSU	Uridine-5'-phosphorothioate	0.762
47	U	Uridine-5'-monophosphate	0.762
48	U37	Uridine 5'-monothiophosphate	0.762
49	U4S	1-(5-deoxy-5-pyrrolidin-1-yl-alpha-L-arabinofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.762
50	U5P	Uridine-5'-monophosphate	0.762
51	UAR	Uracil arabinose-5'-phosphate	0.762
52	UD5	5-fluorouridine	0.762
53	0MI	1-[(2~{R},4~{S},5~{R})-5-[[(azanylidene-$L^{4}-azanylidene)amino]methyl]-4-oxidanyl-oxolan-2-yl]-5-methyl-pyrimidine-2,4-dione	0.750
54	BVD	5-bromovinyldeoxyuridine	0.750
55	EDV	1-(2-deoxy-2-methyl-beta-D-arabinofuranosyl)-5-ethynylpyrimidine-2,4(1h,3h)-dione	0.750
56	FDU	1-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl)-5-ethynylpyrimidine-2,4(1h,3h)-dione	0.750
57	UZ0	2'-azido-2'-deoxyuridine	0.750
58	5AE	4-amino-1-(beta-D-ribofuranosyl)-1,3,5-triazin-2(1h)-one	0.737
59	5BT	5-bromo-2'-deoxycytidine	0.737
60	B86	2'-deoxy-5-fluorocytidine	0.737
61	BRD	1-beta-ribofuranosyl-1,3-diazepinone	0.737
62	CTD	3-deazacytidine	0.737
63	MCY	5-methyl-2'-deoxycytidine	0.737
64	TQR	4-azanyl-1-[(2~{R},3~{R},4~{S},5~{R})-5-(hydroxymethyl)-3,4-bis(oxidanyl)thiolan-2-yl]pyrimidin-2-one	0.737
65	48C	5'-(D-alanylamino)-5'-deoxyuridine	0.727
66	5BU	5-bromo-uridine-5'-monophosphate	0.727
67	5FU	5-fluoro-uridine-5'-monophosphate	0.727
68	5MU	5-methyluridine 5'-monophosphate	0.727
69	A1L3O	5-hydroxyuridine 5'-phosphate	0.727
70	BMP	6-hydroxyuridine-5'-phosphate	0.727
71	BMQ	1-(5'-phospho-beta-D-ribofuranosyl)barbituric acid	0.727
72	D5D	[(1s)-1-[(2s,3s,4r,5r)-5-[2,4-bis(oxidanylidene)-1,3-diazinan-1-yl]-3,4-bis(oxidanyl)oxolan-2-yl]ethyl] dihydrogen phosphate	0.727
73	IU	5-iodouridine-5'-monophosphate	0.727
74	NUP	6-aminouridine 5'-monophosphate	0.727
75	S5P	6-sulfanyluridine-5'-phosphate	0.727
76	U2S	1-(5-deoxy-5-morpholin-4-yl-alpha-L-arabinofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.727
77	U34	Uridine 5'-monomethylphosphate	0.727
78	U3S	1-(5-deoxy-5-piperidin-1-yl-alpha-L-arabinofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.727
79	U6M	6-methyluridine 5'-(dihydrogen phosphate)	0.727
80	UR3	3-methyluridine-5'-monophoshate	0.727
81	3KA	1-(2-deoxy-5-O-phosphono-beta-L-erythro-pentofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.714
82	A1EHT	N4-acetylcytidine	0.714
83	ADU	3'-deoxy-3'-acetamido-uridine	0.714
84	DDN	3,4-dihydro-2'-deoxyuridine-5'-monophosphate	0.714
85	DU	2'-deoxyuridine-5'-monophosphate	0.714
86	DUS	2'-deoxy-5'-O-sulfouridine	0.714
87	F2U	2'-deoxy-5-ethynyl-2',2'-difluorouridine	0.714
88	L2B	3'-deoxyuridine-5'-monophosphate	0.714
89	MMT	5'-O-(dimethylamino)-thymidine	0.714
90	P0C	6-methyl-3-(beta-D-ribofuranosyl)-3,7-dihydro-2h-pyrrolo[2,3-D]pyrimidin-2-one	0.714
91	PYO	1-(beta-D-ribofuranosyl)-pyrimidin-2-one-5'-phosphate	0.714
92	UMC	2'-deoxy-5'-uridylic acid	0.714
93	UMP	2'-deoxyuridine 5'-monophosphate	0.714
94	UPS	2'-deoxy-5'-O-thiophosphonouridine	0.714
95	XCI	[(2~{S},3~{S},5~{R})-5-[5-methyl-2,4-bis(oxidanylidene)pyrimidin-1-yl]-3-oxidanyl-oxolan-2-yl]methylselanylphosphonous acid	0.714
96	XY7	1-[2-deoxy-5-O-(dihydroxyphosphanyl)-2-fluoro-beta-L-ribofuranosyl]pyrimidine-2,4(1h,3h)-dione	0.714
97	AHU	1',5'-anhydro-2',3'-dideoxy-2'-(5-iodouracil-1-yl)-D-ababino-hexitol	0.700
98	GEO	Gemcitabine	0.700
99	SCT	(south)-methanocarba-thymidine	0.700
100	TMC	1-[4-hydroxy-5-(hydroxymethyl)bicyclo[3.1.0]hex-2-yl]-5-methylpyrimidine-2,4(1h,3h)-dione	0.700
101	TV0	4-azanyl-1-[(2~{R},3~{R},4~{S},5~{S})-5-(hydroxymethyl)-3,4,5-tris(oxidanyl)thiolan-2-yl]pyrimidin-2-one	0.700
102	UZL	O2'-methylycytidine	0.700
103	VVC	4-azanyl-1-[(2~{R},4~{S},5~{R})-5-ethynyl-5-(hydroxymethyl)-4-oxidanyl-oxolan-2-yl]pyrimidin-2-one	0.700