CNC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(Cc1ccc(OCc2ccccc2)cc1)NC(=O)C(COCc1ccccc1)NC(=O)OC(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?