COC(=O)C1=C(O)C(C(=O)OC)[C@@]2(O)[C@@H](C(=O)OC)[C@H](C)[C@@H](C)[C@@H]1[C@@H]2C(=O)OC
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?