1	XCT	4-amino-1-(2,3-dideoxy-6-O-phosphono-beta-D-erythro-hexopyranosyl)pyrimidin-2(1h)-one	1.000
2	XTH	1-(2,3-dideoxy-6-O-phosphono-beta-D-erythro-hexopyranosyl)-5-methylpyrimidine-2,4(1h,3h)-dione	0.870
3	DCM	2'-deoxycytidine-5'-monophosphate	0.864
4	DNR	2'-deoxy-n3-protonated cytidine-5'-monophosphate	0.864
5	IY9	[5-(4-azanyl-2-oxidanylidene-pyrimidin-1-yl)-3-oxidanyl-furan-2-yl]methyl dihydrogen phosphate	0.864
6	XC	[(2~{R},3~{R},5~{R})-5-(6-azanyl-2-oxidanylidene-4,5-dihydropyrimidin-3-yl)-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphate	0.864
7	0C	L-cytidine-5'-monophosphate	0.826
8	5CM	5-methyl-2'-deoxy-cytidine-5'-monophosphate	0.826
9	5OC	2'-deoxy-5-hydroxycytidine 5'-(dihydrogen phosphate)	0.826
10	8XC	4-amino-1-(5-O-phosphono-beta-D-xylofuranosyl)pyrimidin-2(1h)-one	0.826
11	A5M	2'-amine-cytidine-5'-monophosphate	0.826
12	C	Cytidine-5'-monophosphate	0.826
13	C5P	Cytidine-5'-monophosphate	0.826
14	CAR	Cytosine arabinose-5'-phosphate	0.826
15	CBR	5-bromo-2'-deoxy-cytidine-5'-monophosphate	0.826
16	CFL	4-amino-1-(2-deoxy-2-fluoro-5-O-phosphono-beta-D-arabinofuranosyl)pyrimidin-2(1h)-one	0.826
17	CFZ	2'-deoxy-2'-fluorocytidine 5'-(dihydrogen phosphate)	0.826
18	CH	N3-protonated cytidine-5'-monophosphate	0.826
19	IY0	[5-(4-azanyl-2-oxidanylidene-pyrimidin-1-yl)-3,4-bis(oxidanyl)furan-2-yl]methyl dihydrogen phosphate	0.826
20	ME6	[(2r,3s,5r)-5-(4-azanyl-3-methyl-2-oxo-pyrimidin-3-ium-1-yl)-3-hydroxy-oxolan-2-yl]methyl dihydrogen phosphate	0.826
21	OFC	4-amino-1-(2-deoxy-2-fluoro-5-O-phosphono-beta-L-ribofuranosyl)pyrimidin-2(1h)-one	0.826
22	RY	5'-3,6-dihydrocytidylic acid	0.826
23	42E	[(2r,5s)-5-(4-amino-2-oxopyrimidin-1(2h)-yl)-1,3-oxathiolan-2-yl]methyl dihydrogen phosphate	0.818
24	DOC	2',3'-dideoxycytidine-5'-monophosphate	0.818
25	Z	1-(2-deoxy-5-O-phosphono-beta-D-erythro-pentofuranosyl)pyrimidin-2(1h)-one	0.818
26	10C	4-amino-1-{2,5-anhydro-4-[(phosphonooxy)methyl]-alpha-L-lyxofuranosyl}pyrimidin-2(1h)-one	0.792
27	5CF	5-fluorocytidine 5'-(dihydrogen phosphate)	0.792
28	5FC	5-formyl-2'-deoxy-cytidine-5'-monophosphate	0.792
29	5IC	5-iodo-cytidine-5'-monophosphate	0.792
30	5MC	5-methylcytidine-5'-monophosphate	0.792
31	5SE	2'-deoxy-5-(methylselanyl)cytidine 5'-(dihydrogen phosphate)	0.792
32	B8Q	3-methyl, cytidine-5'-monophosphate	0.792
33	CBV	5-bromocytidine 5'-(dihydrogen phosphate)	0.792
34	CSL	(D)-2'-methylselenyl-2'-deoxycytidine-5'-phosphate	0.792
35	JMH	3-methylcytidine- 5'-monophosphate	0.792
36	MDQ	2'-deoxy-3-(oxidomethyl)cytidine 5'-(dihydrogen phosphate)	0.792
37	OMC	O2'-methylycytidine-5'-monophosphate	0.792
38	TKW	5-hydroxycytidine 5'-(dihydrogen phosphate)	0.792
39	U7B	2'-deoxy-2'2'-difluorodeoxycytidine	0.792
40	XE6	4-amino-1-(2-O-methyl-5-O-phosphono-beta-L-ribofuranosyl)pyrimidin-2(1h)-one	0.792
41	0DC	2'-deoxy-L-ribo-furanosyl cytosine-5'-monophosphate	0.783
42	3KA	1-(2-deoxy-5-O-phosphono-beta-L-erythro-pentofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.783
43	43X	[(2r,5s)-5-(4-amino-5-fluoro-2-oxopyrimidin-1(2h)-yl)-1,3-oxathiolan-2-yl]methyl dihydrogen phosphate	0.783
44	5PY	1-(2'-deoxy-5'-O-phosphono-beta-D-erythro-pentofuranosyl)-5-methylpyrimidin-2(1h)-one	0.783
45	9L3	[(2r,3s,5r)-5-(4-azanyl-5-methyl-pyrimidin-1-ium-1-yl)-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphate	0.783
46	C42	3'-amino-2'-deoxy-cytidine-5'-monophosphate	0.783
47	CMR	2'-deoxy-cytidine-5'-rp-monomethylphosphonate	0.783
48	DC	2'-deoxycytidine-5'-monophosphate	0.783
49	O2C	3'-deoxy-cytidine-5'-monophosphate	0.783
50	PYO	1-(beta-D-ribofuranosyl)-pyrimidin-2-one-5'-phosphate	0.783
51	SC	2-deoxy-cytidine-5'-thiophosphorate	0.783
52	UMC	2'-deoxy-5'-uridylic acid	0.783
53	UMP	2'-deoxyuridine 5'-monophosphate	0.783
54	5HM	5-(hydroxymethyl)cytidine 5'-(dihydrogen phosphate)	0.760
55	C49	4-thio,5-fluoro,5-methyl-2'-deoxy-cytidine-5'-monophosphate	0.760
56	E3C	3-ethyl, cytidine-5'-monophosphate	0.760
57	EIX	[(2r,3s,5s)-5-[(4r,5r)-6-azanyl-5-fluoranyl-5-methyl-2-oxidanylidene-4-sulfanyl-4h-pyrimidin-3-yl]-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphate	0.760
58	JMC	[(2~{R},3~{R},4~{R},5~{R})-5-(4-azanyl-3-methyl-2-oxidanylidene-4~{H}-pyrimidin-1-yl)-4-methoxy-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphate	0.760
59	KEA	2'-azido-2'-deoxycytidine 5'-(dihydrogen phosphate)	0.760
60	LCC	[(1r,3r,4r,7s)-7-hydroxy-3-(5-methylcytosin-1-yl)-2,5-dioxabicyclo[2.2.1]hept-1-yl]methyl dihydrogen phosphate	0.760
61	MMX	3-ethyl-3,4,5,6-tetrahydrocytidine 5'-(dihydrogen phosphate)	0.760
62	RSQ	5-formylcytidine 5'-(dihydrogen phosphate)	0.760
63	TLB	2'-O,3'-C-methylene-arabinofuranosyl-thymine-5'-monophosphate	0.760
64	ULF	[(1r,3r,4r,5r,7s)-3-(2,4-dioxo-3,4-dihydropyrimidin-1(2h)-yl)-5-fluoro-7-hydroxy-2-oxabicyclo[2.2.1]hept-1-yl]methyl dihydrogen phosphate	0.760
65	UMX	[(1r,3r,4r,5s,7s)-3-(2,4-dioxo-3,4-dihydropyrimidin-1(2h)-yl)-7-hydroxy-5-methyl-2-oxabicyclo[2.2.1]hept-1-yl]methyl dihydrogen phosphate	0.760
66	URX	[(1r,3r,4r,5r,7s)-3-(2,4-dioxo-3,4-dihydropyrimidin-1(2h)-yl)-7-hydroxy-5-methyl-2-oxabicyclo[2.2.1]hept-1-yl]methyl dihydrogen phosphate	0.760
67	UVX	[(1r,3r,4r,7s)-3-(2,4-dioxo-3,4-dihydropyrimidin-1(2h)-yl)-7-hydroxy-5-methylidene-2-oxabicyclo[2.2.1]hept-1-yl]methyl dihydrogen phosphate	0.760
68	XAD	9-(2,3-dideoxy-6-O-phosphono-beta-D-erythro-hexopyranosyl)-9h-purin-6-amine	0.760
69	XFC	4-amino-1-(2-deoxy-2-fluoro-5-O-phosphono-beta-D-arabinofuranosyl)-2-oxo-1,2-dihydropyrimidine-5-carbaldehyde	0.760
70	0U	L-uridine-5'-monophosphate	0.750
71	1SC	5'-O-thiophosphonocytidine	0.750
72	2AU	2'-aminouridine	0.750
73	2GF	[(2r,5r)-5-(4-amino-5-chloro-2-oxopyrimidin-1(2h)-yl)-3-oxotetrahydrofuran-2-yl]methyl dihydrogen phosphate	0.750
74	4SU	4-thiouridine-5'-monophosphate	0.750
75	4U3	5-chloro-2'-deoxycytidine 5'-(dihydrogen phosphate)	0.750
76	5IU	5-iodo-2'-deoxyuridine-5'-monophosphate	0.750
77	7K8	[(2~{R},3~{S},5~{R})-5-[(4~{E})-4-hydroxyimino-2-oxidanylidene-1,3-diazinan-1-yl]-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphate	0.750
78	8XU	1-(5-O-phosphono-beta-D-xylofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.750
79	BRU	5-bromo-2'-deoxyuridine-5'-monophosphate	0.750
80	C34	N4-methyl-2'-deoxy-cytidine-5'-monophosphate	0.750
81	C37	5-fluoro-2'-deoxy-cytidine-5'-monophosphate	0.750
82	C38	5-iodo-2'-deoxy-cytidine-5'-monophosphate	0.750
83	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	0.750
84	H2U	5,6-dihydrouridine-5'-monophosphate	0.750
85	MDK	4-amino-1-(2-deoxy-5-O-phosphono-beta-D-erythro-pentofuranosyl)-3-methylpyridin-2(1h)-one	0.750
86	NOH	2'-deoxy-N-hydroxycytidine 5'-(dihydrogen phosphate)	0.750
87	OHU	2'-deoxy-5-hydroxyuridine 5'-(dihydrogen phosphate)	0.750
88	OKN	5'-methyl-2'-deoxycytidine-5'-phosphorothioate	0.750
89	RSP	4-amino-1-(5-O-phosphono-beta-D-ribofuranosyl)pyrimidine-2(1h)-thione	0.750
90	T4S	1-(2-deoxy-5-O-phosphono-beta-D-erythro-pentofuranosyl)-4-hydroseleno-5-methylpyrimidin-2(1h)-one	0.750
91	TJU	[(2~{R},3~{S},5~{R})-5-(4-azanyl-3-methyl-6-oxidanylidene-2~{H}-1,3,5-triazin-1-yl)-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphite	0.750
92	TTI	2'-deoxy-5-telluroxouridine 5'-(dihydrogen phosphate)	0.750
93	U	Uridine-5'-monophosphate	0.750
94	U48	5-methyl-2'-deoxy-n3-protonated cytidine-5'-monophosphate	0.750
95	U5P	Uridine-5'-monophosphate	0.750
96	UAR	Uracil arabinose-5'-phosphate	0.750
97	UF2	1-(2-deoxy-2-fluoro-5-O-phosphono-beta-D-arabinofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.750
98	UFP	5-fluoro-2'-deoxyuridine-5'-monophosphate	0.750
99	UFT	2'-deoxy-2'-fluorouridine 5'-(dihydrogen phosphate)	0.750
100	US5	1-(5-O-phosphono-beta-D-ribofuranosyl)-4-selanylpyrimidin-2(1h)-one	0.750
101	CDW	(4r)-3-(2-deoxy-5-O-phosphono-beta-D-erythro-pentofuranosyl)-1,3-diazabicyclo[2.2.0]hex-5-en-2-one	0.739
102	UBB	2',3'-dideoxy-uridine-5'-monophosphate	0.739
103	Y5P	1-(5-O-phosphono-beta-D-ribofuranosyl)-1,4-dihydropyrimidine	0.739
104	1FC	4-amino-1-(2-deoxy-2-fluoro-5-O-phosphono-beta-D-arabinofuranosyl)-2-oxo-1,2-dihydropyrimidine-5-carboxylic acid	0.731
105	M5M	2'-(N-acetamide)-cytidine-5'-monophosphate	0.731
106	N5M	5-nitrocytidine 5'-(dihydrogen phosphate)	0.731
107	TLC	2-O,3-ethdiyl-arabinofuranosyl-thymine-5'-monophosphate	0.731
108	XGU	2-amino-9-(2,3-dideoxy-6-O-phosphono-beta-D-erythro-hexopyranosyl)-1,9-dihydro-6h-purin-6-one	0.731
109	0U1	2'-methylselenyl-2'-deoxy-L-uridine-5'-monophosphate	0.720
110	16B	N-hydroxycytidine 5'-(dihydrogen phosphate)	0.720
111	5BU	5-bromo-uridine-5'-monophosphate	0.720
112	5FU	5-fluoro-uridine-5'-monophosphate	0.720
113	5HC	2'-deoxy-5-(hydroxymethyl)cytidine 5'-(dihydrogen phosphate)	0.720
114	5MU	5-methyluridine 5'-monophosphate	0.720
115	6OO	2'-O-methyl-5'-O-thiophosphonocytidine	0.720
116	7OK	N-hydroxycytidine 5'-(dihydrogen phosphate) tautomer	0.720
117	B8T	4-methyl, cytidine-5'-monophosphate	0.720
118	BMP	6-hydroxyuridine-5'-phosphate	0.720
119	BMQ	1-(5'-phospho-beta-D-ribofuranosyl)barbituric acid	0.720
120	C45	N4-methoxy-2'-deoxy-cytidine-5'-monophosphate	0.720
121	EDC	N3,n4-etheno-2'-deoxycytidine-5'-monophosphate	0.720
122	IU	5-iodouridine-5'-monophosphate	0.720
123	JDT	2'-deoxy-5-ethyluridine 5'-(dihydrogen phosphate)	0.720
124	MDJ	4-amino-1-(2-deoxy-5-O-phosphono-beta-D-erythro-pentofuranosyl)-3-(hydroxymethyl)pyridin-2(1h)-one	0.720
125	MFT	3-methylthymidine 5'-(dihydrogen phosphate)	0.720
126	NUP	6-aminouridine 5'-monophosphate	0.720
127	OKQ	2'-O-methylcytidine-5'-phosphorothioate	0.720
128	OMU	O2'-methyluridine 5'-monophosphate	0.720
129	S5P	6-sulfanyluridine-5'-phosphate	0.720
130	T5O	2'-deoxy-5-methoxyuridine 5'-(dihydrogen phosphate)	0.720
131	T5S	2'-deoxy-5-(methylselanyl)uridine 5'-phosphate	0.720
132	TAF	2'-deoxy-2'-fluoro-arabino-furanosyl thymine-5'-phosphate	0.720
133	U4M	1-{2,5-dideoxy-2-fluoro-4-[(phosphonooxy)methyl]-alpha-L-lyxofuranosyl}pyrimidine-2,4(1h,3h)-dione	0.720
134	U5M	1-(2,6-dideoxy-2-fluoro-5-O-phosphono-alpha-L-talofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.720
135	U5R	1-(2,6-dideoxy-2-fluoro-5-O-phosphono-beta-D-allofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.720
136	U6M	6-methyluridine 5'-(dihydrogen phosphate)	0.720
137	UMS	2'-methylselenyl-2'-deoxyuridine-5'-phosphate	0.720
138	UR3	3-methyluridine-5'-monophoshate	0.720
139	USM	2'-S-methyl-2'-thiouridine 5'-(dihydrogen phosphate)	0.720
140	XEC	1-(2-O-methyl-5-O-phosphono-beta-L-ribofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.720
141	2DT	3'-deoxythymidine-5'-monophosphate	0.708
142	5NC	5-aza-cytidine-5'monophosphate	0.708
143	8RO	[(2~{R},3~{S},5~{R})-5-(5-methyl-2-oxidanylidene-7-thia-1,3-diazabicyclo[4.1.0]hept-5-en-3-yl)-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphite	0.708
144	C7R	2'-deoxy-5'-O-thiophosphonocytidine	0.708
145	C7S	2'-deoxy-5'-O-thiophosphonocytidine	0.708
146	D4M	[(5r)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2h)-yl)-2,5-dihydrofuran-2-yl]methyl dihydrogen phosphate	0.708
147	DDN	3,4-dihydro-2'-deoxyuridine-5'-monophosphate	0.708
148	DU	2'-deoxyuridine-5'-monophosphate	0.708
149	L2B	3'-deoxyuridine-5'-monophosphate	0.708
150	TA3	(4s,5r)-3-(2-deoxy-5-O-phosphono-beta-D-erythro-pentofuranosyl)-5-methyl-1,3-diazabicyclo[2.2.0]hexan-2-one	0.708
151	UPS	2'-deoxy-5'-O-thiophosphonouridine	0.708
152	US1	2'-deoxy-3'-thiouridine 5'-(dihydrogen phosphate)	0.708
153	XY7	1-[2-deoxy-5-O-(dihydroxyphosphanyl)-2-fluoro-beta-L-ribofuranosyl]pyrimidine-2,4(1h,3h)-dione	0.708
154	6FC	2'-trifluoromethylthio-2'-deoxycytidine	0.704
155	B9H	2'-methyl, 3-propyl, cytidine-5'-monophosphate	0.704
156	C31	2'-O-3-aminopropyl cytidine-5'-monophosphate	0.704
157	C43	2'-O-methyoxyethyl-cytidine-5'-monophosphate	0.704
158	NCU	[(1r,5r,7r,8s)-7-(4-amino-5-methyl-2-oxopyrimidin-1(2h)-yl)-8-hydroxy-3-methyl-2,6-dioxa-3-azabicyclo[3.2.1]oct-5-yl]methyl dihydrogen phosphate	0.704