COC(=O)[C@@H](NC(=O)N(Cc1ccccc1)C[C@H](CC(C)C)NC(=O)[C@@H](NC(=O)OC(C)(C)C)C(C)C)C(C)C
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?