CC(C)C(C(=O)OCC(=O)c1cccc([N+](=O)[O-])c1)N1C(=O)[C@H]2[C@@H]3CC[C@@H](C3)[C@H]2C1=O
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?