CC[C@@H](C)[C@@H](C(=O)N1CCN(C(=O)OC(C)(C)C)CC1)n1cc(CCCN=C(NC(=O)OC(C)(C)C)NC(=O)OC(C)(C)C)nn1
How many heavy atoms like carbon, oxygen, nitrogen, sulfur and other non-hydrogen atoms do the molecule contain?