1	GEO	Gemcitabine	1.000
2	Y7U	2',2'-difluorodeoxyuridine	0.895
3	DCZ	2'-deoxycytidine	0.889
4	LDC	4-amino-1-(2-deoxy-beta-L-erythro-pentofuranosyl)pyrimidin-2(1h)-one	0.889
5	5BT	5-bromo-2'-deoxycytidine	0.842
6	AR3	Cytarabine	0.842
7	B86	2'-deoxy-5-fluorocytidine	0.842
8	CTN	4-amino-1-beta-D-ribofuranosyl-2(1h)-pyrimidinone	0.842
9	MCY	5-methyl-2'-deoxycytidine	0.842
10	F2U	2'-deoxy-5-ethynyl-2',2'-difluorouridine	0.810
11	F01	4-amino-1-[(2r,3r,4s,5r)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-fluoro-pyrimidin-2-one	0.800
12	U7I	2'-deoxy-2'-fluoro-2'-methyluridine	0.800
13	UZL	O2'-methylycytidine	0.800
14	VVC	4-azanyl-1-[(2~{R},4~{S},5~{R})-5-ethynyl-5-(hydroxymethyl)-4-oxidanyl-oxolan-2-yl]pyrimidin-2-one	0.800
15	DHZ	3,4-dihydro-1h-pyrimidin-2-one nucleoside	0.789
16	DUR	2'-deoxyuridine	0.789
17	THU	Tetrahydrodeoxyuridine	0.789
18	ZE8	Zebularine	0.789
19	FDU	1-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl)-5-ethynylpyrimidine-2,4(1h,3h)-dione	0.762
20	LKC	4-amino-1-[(1s,3r,4r,7s)-7-hydroxy-1-(hydroxymethyl)-2,5-dioxabicyclo[2.2.1]hept-3-yl]-5-methylpyrimidin-2(1h)-one	0.762
21	P6D	2'-azidocytidine	0.762
22	5AE	4-amino-1-(beta-D-ribofuranosyl)-1,3,5-triazin-2(1h)-one	0.750
23	CTD	3-deazacytidine	0.750
24	I5A	5'-deoxy-5'-iodocytidine	0.750
25	ID2	5-iododeoxyuridine	0.750
26	LLT	L-deoxythymidine	0.750
27	THM	Thymidine	0.750
28	TQR	4-azanyl-1-[(2~{R},3~{R},4~{S},5~{R})-5-(hydroxymethyl)-3,4-bis(oxidanyl)thiolan-2-yl]pyrimidin-2-one	0.750
29	TYU	Tetrahydrouridine	0.750
30	U33	5-bromo-2'-deoxy uridine	0.750
31	URI	Uridine	0.750
32	ZEB	4-hydroxy-3,4-dihydro-zebularine	0.750
33	U7B	2'-deoxy-2'2'-difluorodeoxycytidine	0.739
34	3TC	4-amino-1-[(2r,5s)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidin-2(1h)-one	0.737
35	DDU	2'-5'dideoxyuridine	0.737
36	LTT	4-amino-1-[(2s,4s)-2-(hydroxymethyl)-1,3-dioxolan-4-yl]pyrimidin-2(1h)-one	0.737
37	38T	5-methyluridine	0.714
38	3DT	3-methylthymidine	0.714
39	5HT	5-hydroxy-thymidine	0.714
40	5UD	5-fluorouridine	0.714
41	EDU	2'-deoxy-5-ethynyluridine	0.714
42	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	0.714
43	U56	N-hydroxycytidine	0.714
44	UUA	Uridine uronic acid	0.714
45	YC6	1-(2-deoxy-alpha-D-erythro-pentofuranosyl)-5-methylpyrimidine-2,4(1h,3h)-dione	0.714
46	38S	1-[(2r,5s)-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methylpyrimidine-2,4(1h,3h)-dione	0.700
47	ANU	2,2'-anhydro-(1-beta-D-arabinofuranosyl)uracil	0.700
48	BJE	2,2'-anhydro-(1-beta-D-ribofuranosyl)uracil	0.700
49	D3Z	1-(5-deoxy-beta-L-xylofuranosyl)pyrimidine-2,4(1h,3h)-dione	0.700
50	ETV	4-amino-5-fluoro-1-[(2r,5s)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidin-2(1h)-one	0.700
51	U4P	5'-deoxyuridine	0.700