Cc1ccc(C(=O)[C@@H]2[C@H]3[C@H]4CO[C@H](O4)C(=O)[C@H]3[C@@H]3C=Cc4ccccc4N23)cc1
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?