CC(C)(C)OC(=O)N1C[C@H](CC(=O)OCc2ccccc2)C[C@H]1C(=O)OCC(Cl)(Cl)Cl
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?