CC(=O)OCC1OC(Sc2nc(-c3ccccc3)c(C#N)c(=O)n2C2OC(COC(C)=O)C(OC(C)=O)C(OC(C)=O)C2OC(C)=O)C(OC(C)=O)C(OC(C)=O)C1OC(C)=O
Heavy atom refers to any atom that is not hydrogen. How many heavy atoms do the molecule have?