O=C1N(CCCCCCN2C(=O)C3C4CC5C6(C)CCCC(C)(C(=O)O)C6CCC5(C=C4C(C)C)C3C2=O)C(=O)C7C8CC9C%10(C)CCCC(C)(C(=O)O)C%10CCC9(C=C8C(C)C)C17