CCOC(=O)N/N=C1/C[C@@H](O)[C@@H](O)[C@H]2[C@@H]1CC[C@@H]1C(=O)N([C@@H](C)c3ccccc3)C(=O)[C@H]12
How many heavy atoms like carbon, oxygen, nitrogen, sulfur and other non-hydrogen atoms do the molecule contain?