CC(=O)OCC1OC(n2c(C)c(C(C)=O)c(-c3ccc(Cl)cc3)c(C#N)c2=S)C(OC(C)=O)C(OC(C)=O)C1OC(C)=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?