1	CMP	Adenosine-3',5'-cyclic-monophosphate	1.000
2	6SX	Purine riboside-3',5'-cyclic monophosphate	0.955
3	6SW	Inosine-3',5'-cyclic monophosphate	0.913
4	6SZ	2-aminopurine riboside-3',5'-cyclic monophosphate	0.913
5	7CH	(2s,4ar,6r,7r,7as)-6-(4-amino-7h-pyrrolo[2,3-D]pyrimidin-7-yl)tetrahydro-4h-furo[3,2-D][1,3,2]dioxaphosphinine-2,7-diol 2-oxide	0.913
6	RP1	6-(6-amino-purin-9-yl)-2-thioxo-tetrahydro-2-furo[3,2-D][1,3,2]dioxaphosphinine-2,7-diol	0.913
7	SP1	6-(6-amino-purin-9-yl)-2-thioxo-tetrahydro-2-furo[3,2-D][1,3,2]dioxaphosphinine-2,7-diol	0.913
8	35G	Guanosine-3',5'-monophosphate	0.875
9	75G	(2s,4ar,6r,7r,7as)-6-(6-amino-2-chloro-9h-purin-9-yl)-7-hydroxy-2-sulfanyltetrahydro-2h,4h-2lambda~5~-furo[3,2-D][1,3,2]dioxaphosphinin-2-one	0.875
10	PCG	Cyclic guanosine monophosphate	0.875
11	RP2	(2r,4ar,6r,7r,7as)-6-(6-amino-8-bromo-9h-purin-9-yl)tetrahydro-4h-furo[3,2-D][1,3,2]dioxaphosphinine-2,7-diol 2-sulfide	0.875
12	6J7	2-amino-8-bromo-9-[(2r,4ar,6r,7r,7as)-2,7-dihydroxy-2-oxotetrahydro-2h,4h-2lambda~5~-furo[3,2-D][1,3,2]dioxaphosphinin-6-yl]-1,9-dihydro-6h-purin-6-one	0.840
13	6ZA	2-amino-9-[(2r,4ar,6r,7r,7as)-2,7-dihydroxy-2-sulfanylidenetetrahydro-2h,4h-2lambda~5~-furo[3,2-D][1,3,2]dioxaphosphinin-6-yl]-3,9-dihydro-6h-purin-6-one	0.800
14	ACK	2',3'- cyclic AMP	0.760
15	CC7	4-amino-1-[(2s,4ar,6r,7r,7as)-2,7-dihydroxy-2-oxidotetrahydro-4h-furo[3,2-D][1,3,2]dioxaphosphinin-6-yl]pyrimidin-2(1h)-one	0.750
16	1OR	(2r,4ar,6r,7r,7as)-6-[6-(dipropylamino)-9h-purin-9-yl]tetrahydro-4h-furo[3,2-D][1,3,2]dioxaphosphinine-2,7-diol 2-oxide	0.724