1	44P	5'-O-[(S)-hydroxy(phosphonomethyl)phosphoryl]uridine	1.000
2	UC5	2'-deoxy-5'-O-[(S)-hydroxy(phosphonomethyl)phosphoryl]uridine	0.960
3	A1CVS	1-{5-O-[(R)-hydroxy(phosphonomethyl)phosphoryl]-beta-D-ribofuranosyl}-2-sulfanylidene-2,3-dihydropyrimidin-4(1h)-one	0.923
4	WSB	5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]uridine	0.800
5	0U	L-uridine-5'-monophosphate	0.769
6	8XU	1-(5-O-phosphono-beta-D-xylofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.769
7	H2U	5,6-dihydrouridine-5'-monophosphate	0.769
8	MUM	5'-O-(dihydroxyphosphanyl)-5-methyl-5,6-dihydrouridine	0.769
9	SSU	Uridine-5'-phosphorothioate	0.769
10	U	Uridine-5'-monophosphate	0.769
11	U37	Uridine 5'-monothiophosphate	0.769
12	U5P	Uridine-5'-monophosphate	0.769
13	UAR	Uracil arabinose-5'-phosphate	0.769
14	UD5	5-fluorouridine	0.769
15	GP2	Phosphomethylphosphonic acid guanosyl ester	0.767
16	NYZ	[[(2~{R},3~{S},4~{R},5~{R})-5-(6-azanyl-2-oxidanylidene-3~{H}-purin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]methylphosphonic acid	0.767
17	UPC	2'-deoxy-5'-O-[(R)-hydroxy{[(R)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]uridine	0.767
18	2TM	5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]cytidine	0.742
19	A1ACD	1-{2-deoxy-5-O-[(R)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]-beta-D-threo-pentofuranosyl}-5-methylpyrimidine-2,4(1h,3h)-dione	0.742
20	N6T	2'-deoxy-5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonoamino)phosphoryl]methyl}phosphoryl]-3,4-dihydrothymidine	0.742
21	5BU	5-bromo-uridine-5'-monophosphate	0.741
22	5FU	5-fluoro-uridine-5'-monophosphate	0.741
23	5MU	5-methyluridine 5'-monophosphate	0.741
24	A1L3O	5-hydroxyuridine 5'-phosphate	0.741
25	BMP	6-hydroxyuridine-5'-phosphate	0.741
26	BMQ	1-(5'-phospho-beta-D-ribofuranosyl)barbituric acid	0.741
27	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	0.741
28	IU	5-iodouridine-5'-monophosphate	0.741
29	NUP	6-aminouridine 5'-monophosphate	0.741
30	S5P	6-sulfanyluridine-5'-phosphate	0.741
31	U6M	6-methyluridine 5'-(dihydrogen phosphate)	0.741
32	UR3	3-methyluridine-5'-monophoshate	0.741
33	A12	Phosphomethylphosphonic acid adenosyl ester	0.733
34	AP2	Phosphomethylphosphonic acid adenosyl ester	0.733
35	3KA	1-(2-deoxy-5-O-phosphono-beta-L-erythro-pentofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.731
36	CMR	2'-deoxy-cytidine-5'-rp-monomethylphosphonate	0.731
37	DDN	3,4-dihydro-2'-deoxyuridine-5'-monophosphate	0.731
38	DU	2'-deoxyuridine-5'-monophosphate	0.731
39	L2B	3'-deoxyuridine-5'-monophosphate	0.731
40	PYO	1-(beta-D-ribofuranosyl)-pyrimidin-2-one-5'-phosphate	0.731
41	UMC	2'-deoxy-5'-uridylic acid	0.731
42	UMP	2'-deoxyuridine 5'-monophosphate	0.731
43	UPS	2'-deoxy-5'-O-thiophosphonouridine	0.731
44	XY7	1-[2-deoxy-5-O-(dihydroxyphosphanyl)-2-fluoro-beta-L-ribofuranosyl]pyrimidine-2,4(1h,3h)-dione	0.731
45	6CN	6-cyanouridine 5'-phosphate	0.714
46	A1BBB	5-(hydroxymethyl)uridine 5'-(dihydrogen phosphate)	0.714
47	CNU	5-cyano-uridine-5'-monophosphate	0.714
48	FMU	5-fluoro-5-methyluridine-5'-monophosphate	0.714
49	FNU	6-amino-5-fluorouridine 5'-(dihydrogen phosphate)	0.714
50	JW5	6-(hydroxymethyl)uridine 5'-(dihydrogen phosphate)	0.714
51	U1P	6-[(E)-iminomethyl]uridine 5'-phosphate	0.714
52	UEP	6-ethyluridine 5'-phosphate	0.714
53	8C6	[(R)-[[(2r,3s,4r,5r)-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]-chloranyl-methyl]phosphonic acid	0.710
54	NYW	[[(2~{R},3~{S},4~{R},5~{R})-5-[2,6-bis(azanyl)purin-9-yl]-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]methylphosphonic acid	0.710
55	XC5	2'-deoxy-5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]cytidine	0.710
56	0C	L-cytidine-5'-monophosphate	0.704
57	0DT	2'-deoxy-L-ribo-furanosyl thymidine-5'-monophosphate	0.704
58	1SC	5'-O-thiophosphonocytidine	0.704
59	2AU	2'-aminouridine	0.704
60	3DU	4-hydroxy-1-(5-O-phosphono-beta-D-ribofuranosyl)pyridin-2(1h)-one	0.704
61	4SU	4-thiouridine-5'-monophosphate	0.704
62	5IU	5-iodo-2'-deoxyuridine-5'-monophosphate	0.704
63	6F7	3'-deoxy-5-methyluridine 5'-(dihydrogen phosphate)	0.704
64	8XC	4-amino-1-(5-O-phosphono-beta-D-xylofuranosyl)pyrimidin-2(1h)-one	0.704
65	A1IT3	2'-thiouridine-5'-monophosphate	0.704
66	BRU	5-bromo-2'-deoxyuridine-5'-monophosphate	0.704
67	C	Cytidine-5'-monophosphate	0.704
68	C5P	Cytidine-5'-monophosphate	0.704
69	CAR	Cytosine arabinose-5'-phosphate	0.704
70	CH	N3-protonated cytidine-5'-monophosphate	0.704
71	DT	Thymidine-5'-monophosphate	0.704
72	EW3	[(2~{R},3~{R},4~{R},5~{R})-5-[2,4-bis(oxidanylidene)-1,3-diazinan-1-yl]-4-fluoranyl-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphate	0.704
73	F2T	2'-deoxy-2'-fluoro-5'-O-thiophosphonouridine	0.704
74	IC	Isocytidine-5'-monophosphate	0.704
75	ILK	[(2~{R},3~{S},4~{R},5~{R})-5-[2,4-bis(oxidanylidene)pyrimidin-1-yl]-3,4-bis(oxidanyl)selenolan-2-yl]methyl dihydrogen phosphate	0.704
76	IY0	[5-(4-azanyl-2-oxidanylidene-pyrimidin-1-yl)-3,4-bis(oxidanyl)furan-2-yl]methyl dihydrogen phosphate	0.704
77	OHU	2'-deoxy-5-hydroxyuridine 5'-(dihydrogen phosphate)	0.704
78	PBT	[3-hydroxy-5-(5-methyl-2,4-dioxotetrahydro-1(2h)-pyrimidinyl)tetrahydro-2-furanyl]methyl dihydrogen phosphate	0.704
79	PST	Thymidine-5'-thiophosphate	0.704
80	QBT	[(2r,3s,5r)-3-hydroxy-5-[(5s)-5-methyl-2,4-dioxo-1,3-diazinan-1-yl]oxolan-2-yl]methyl dihydrogen phosphate	0.704
81	RUS	1-(5-O-phosphono-beta-D-ribofuranosyl)-2-selanylpyrimidin-4(1h)-one	0.704
82	RY	5'-3,6-dihydrocytidylic acid	0.704
83	SUR	1-(beta-D-ribofuranosyl)-2-thio-uracil-5'-phosphate	0.704
84	TMP	Thymidine-5'-phosphate	0.704
85	TTI	2'-deoxy-5-telluroxouridine 5'-(dihydrogen phosphate)	0.704
86	UCL	5-chloro-2'-deoxyuridine 5'-(dihydrogen phosphate)	0.704
87	UF2	1-(2-deoxy-2-fluoro-5-O-phosphono-beta-D-arabinofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.704
88	UFP	5-fluoro-2'-deoxyuridine-5'-monophosphate	0.704
89	UFT	2'-deoxy-2'-fluorouridine 5'-(dihydrogen phosphate)	0.704
90	UP6	6-aza uridine 5'-monophosphate	0.704
91	US5	1-(5-O-phosphono-beta-D-ribofuranosyl)-4-selanylpyrimidin-2(1h)-one	0.704