CC(C)CC(NC(=O)OC(C)(C)C)c1cn([C@@H](Cc2ccc(O)cc2)C(=O)N2CCN(C(=O)OC(C)(C)C)CC2)nn1
Heavy atom refers to any atom that is not hydrogen. The heavy atoms in molecules are carbon, oxygen, nitrogen, and sulfur. How many heavy atoms are in the molecule?