CC(=O)OC[C@@H]1O[C@@H](O/N=C2/C[C@@H](O)[C@@H](O)[C@@H]3[C@@H]4C(=O)N(C(C)(C)C)C(=O)[C@H]4CC[C@@H]23)[C@H](OC(C)=O)[C@H](OC(C)=O)[C@@H]1OC(C)=O
Heavy atom refers to any atom that is not hydrogen. How many heavy atoms do the molecule have?