COCC1=C2c3ccccc3[C@H](C[N+](=O)[O-])C(C(=O)OC)(C(=O)OC)C[C@@H]2n2c(=O)n(-c3ccccc3)c(=O)n2C1
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?