CCCCN1CC(=O)N2[C@H](c3ccc(Cl)cc3)[C@@H]3C(=O)N(CC)C(=O)[C@@H]3[C@]2(C)C1=O
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?