CC(C)OC(=O)c1cccc(C(=O)Nc2cccc(NC(=O)c3cccc(C(=O)OC(C)C)n3)n2)n1
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?