1	UC5	2'-deoxy-5'-O-[(S)-hydroxy(phosphonomethyl)phosphoryl]uridine	1.000
2	44P	5'-O-[(S)-hydroxy(phosphonomethyl)phosphoryl]uridine	0.960
3	UPC	2'-deoxy-5'-O-[(R)-hydroxy{[(R)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]uridine	0.793
4	N6T	2'-deoxy-5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonoamino)phosphoryl]methyl}phosphoryl]-3,4-dihydrothymidine	0.767
5	WSB	5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]uridine	0.767
6	3KA	1-(2-deoxy-5-O-phosphono-beta-L-erythro-pentofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.760
7	CMR	2'-deoxy-cytidine-5'-rp-monomethylphosphonate	0.760
8	DDN	3,4-dihydro-2'-deoxyuridine-5'-monophosphate	0.760
9	DU	2'-deoxyuridine-5'-monophosphate	0.760
10	UMC	2'-deoxy-5'-uridylic acid	0.760
11	UMP	2'-deoxyuridine 5'-monophosphate	0.760
12	UPS	2'-deoxy-5'-O-thiophosphonouridine	0.760
13	XY7	1-[2-deoxy-5-O-(dihydroxyphosphanyl)-2-fluoro-beta-L-ribofuranosyl]pyrimidine-2,4(1h,3h)-dione	0.760
14	GP2	Phosphomethylphosphonic acid guanosyl ester	0.733
15	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	0.733
16	XC5	2'-deoxy-5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]cytidine	0.733
17	0DT	2'-deoxy-L-ribo-furanosyl thymidine-5'-monophosphate	0.731
18	0U	L-uridine-5'-monophosphate	0.731
19	2AU	2'-aminouridine	0.731
20	5IU	5-iodo-2'-deoxyuridine-5'-monophosphate	0.731
21	8XU	1-(5-O-phosphono-beta-D-xylofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.731
22	BRU	5-bromo-2'-deoxyuridine-5'-monophosphate	0.731
23	DT	Thymidine-5'-monophosphate	0.731
24	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	0.731
25	F2T	2'-deoxy-2'-fluoro-5'-O-thiophosphonouridine	0.731
26	H2U	5,6-dihydrouridine-5'-monophosphate	0.731
27	MUM	5'-O-(dihydroxyphosphanyl)-5-methyl-5,6-dihydrouridine	0.731
28	OHU	2'-deoxy-5-hydroxyuridine 5'-(dihydrogen phosphate)	0.731
29	PBT	[3-hydroxy-5-(5-methyl-2,4-dioxotetrahydro-1(2h)-pyrimidinyl)tetrahydro-2-furanyl]methyl dihydrogen phosphate	0.731
30	PST	Thymidine-5'-thiophosphate	0.731
31	QBT	[(2r,3s,5r)-3-hydroxy-5-[(5s)-5-methyl-2,4-dioxo-1,3-diazinan-1-yl]oxolan-2-yl]methyl dihydrogen phosphate	0.731
32	SSU	Uridine-5'-phosphorothioate	0.731
33	TMP	Thymidine-5'-phosphate	0.731
34	TTI	2'-deoxy-5-telluroxouridine 5'-(dihydrogen phosphate)	0.731
35	U	Uridine-5'-monophosphate	0.731
36	U37	Uridine 5'-monothiophosphate	0.731
37	U5P	Uridine-5'-monophosphate	0.731
38	UAR	Uracil arabinose-5'-phosphate	0.731
39	UCL	5-chloro-2'-deoxyuridine 5'-(dihydrogen phosphate)	0.731
40	UD5	5-fluorouridine	0.731
41	UF2	1-(2-deoxy-2-fluoro-5-O-phosphono-beta-D-arabinofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.731
42	UFP	5-fluoro-2'-deoxyuridine-5'-monophosphate	0.731
43	UFT	2'-deoxy-2'-fluorouridine 5'-(dihydrogen phosphate)	0.731
44	UBB	2',3'-dideoxy-uridine-5'-monophosphate	0.720
45	Z	1-(2-deoxy-5-O-phosphono-beta-D-erythro-pentofuranosyl)pyrimidin-2(1h)-one	0.720
46	4BD	5'-O-[(S)-{difluoro[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}(hydroxy)phosphoryl]thymidine	0.719
47	2TM	5'-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]methyl}phosphoryl]cytidine	0.710
48	0U1	2'-methylselenyl-2'-deoxy-L-uridine-5'-monophosphate	0.704
49	5BU	5-bromo-uridine-5'-monophosphate	0.704
50	5FU	5-fluoro-uridine-5'-monophosphate	0.704
51	5HU	5-hydroxymethyluridine-2'-deoxy-5'-monophosphate	0.704
52	5MU	5-methyluridine 5'-monophosphate	0.704
53	64P	5-aminothymidine 5'-(dihydrogen phosphate)	0.704
54	64T	5-hydroxy-thymidine-5'-monophosphate	0.704
55	BMP	6-hydroxyuridine-5'-phosphate	0.704
56	BMQ	1-(5'-phospho-beta-D-ribofuranosyl)barbituric acid	0.704
57	IU	5-iodouridine-5'-monophosphate	0.704
58	JDT	2'-deoxy-5-ethyluridine 5'-(dihydrogen phosphate)	0.704
59	MFT	3-methylthymidine 5'-(dihydrogen phosphate)	0.704
60	NUP	6-aminouridine 5'-monophosphate	0.704
61	OKT	2'-O-methyluridine-5'-phosphorothioate	0.704
62	OMU	O2'-methyluridine 5'-monophosphate	0.704
63	S5P	6-sulfanyluridine-5'-phosphate	0.704
64	T5O	2'-deoxy-5-methoxyuridine 5'-(dihydrogen phosphate)	0.704
65	T5S	2'-deoxy-5-(methylselanyl)uridine 5'-phosphate	0.704
66	TAF	2'-deoxy-2'-fluoro-arabino-furanosyl thymine-5'-phosphate	0.704
67	U4M	1-{2,5-dideoxy-2-fluoro-4-[(phosphonooxy)methyl]-alpha-L-lyxofuranosyl}pyrimidine-2,4(1h,3h)-dione	0.704
68	U5M	1-(2,6-dideoxy-2-fluoro-5-O-phosphono-alpha-L-talofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.704
69	U5R	1-(2,6-dideoxy-2-fluoro-5-O-phosphono-beta-D-allofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.704
70	U6M	6-methyluridine 5'-(dihydrogen phosphate)	0.704
71	UFR	2'-deoxy-5-formyluridine 5'-(dihydrogen phosphate)	0.704
72	UMS	2'-methylselenyl-2'-deoxyuridine-5'-phosphate	0.704
73	UR3	3-methyluridine-5'-monophoshate	0.704
74	US2	2'-deoxy-5-(methylsulfanyl)uridine 5'-(dihydrogen phosphate)	0.704
75	USM	2'-S-methyl-2'-thiouridine 5'-(dihydrogen phosphate)	0.704
76	XEC	1-(2-O-methyl-5-O-phosphono-beta-L-ribofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.704
77	A12	Phosphomethylphosphonic acid adenosyl ester	0.700
78	AP2	Phosphomethylphosphonic acid adenosyl ester	0.700