C=C1CC2OC2(C(=O)O[C@H]2CCC3[C@@H]4CCC5=CC(=O)CC[C@]5(C)C4CC[C@@]32C)C1=O
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?