O=C1NC(C(C)C)C(=O)NC(CCCN)C(=O)NC(CC(C)C)C(=O)NC(Cc2ccccc2)C(=O)N3CCCC3C(=O)NC(C(C)C)C(=O)NC(CCCN)C(=O)NC(CC(C)C)C(=O)NC(Cc4ccccc4)C(=O)N5CCCC15