The name/synonym for ligand CMP (curated from ChEBI, PubChem, and PDB databases):

13',5'-CYCLIC AMP
2ADENOSINE 3',5'-CYCLIC MONOPHOSPHATE
3ADENOSINE 3',5'-(HYDROGEN PHOSPHATE)
4CYCLIC ADENYLIC ACID
5CYCLIC AMP
6CAMP
7ADENOSINE 3',5'-PHOSPHATE
8(2R,4AR,6R,7R,7AS)-6-(6-AMINO-9H-PURIN-9-YL)TETRAHYDRO-4H-FURO[3,2-D][1,3,2]DIOXAPHOSPHININE-2,7-DIOL 2-OXIDE
9ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE