C[C@@H]1COC(=O)[C@@H](NC(=O)OCC2c3ccccc3-c3ccccc32)C/C=C\C[C@@H](CC(=O)N(CCO)Cc2ccccc2)C(=O)N1
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?