COC(=O)c1ccc(C2C(C(=O)c3ccc(OC)c(C)c3)=C(O)C(=O)N2c2cc(C)on2)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?