CCN(CC)C(=O)[C@H]1C[C@H](CC(=O)NCCCn2ccnc2)C(=O)N2CCc3c([nH]c4ccc(Cl)cc34)[C@]12C
Aromatic rings (also known as aromatic compounds or arenes) are hydrocarbons which contain benzene, or some other related ring structure. How many aromatic rings does the molecule contain?