O=C(O)C1CCN(C(=O)c2ccccc2N2C(=O)[C@@H]3Cc4c([nH]c5ccccc45)C(c4cccc(Cl)c4)N3C2=O)CC1
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?