COc1ccc(-c2cc(=O)oc3cc(OCC(=O)N4C[C@@H]5C[C@H](C4)Cn4c5cccc4=O)ccc23)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?