O(CC(=O)N(CCCCCCCCCC)CCCCCCCCCC)c1c2Cc3cc(cc(Cc4cc(cc(Cc5cc(cc(Cc1cc(c2)C(C)(C)C)c5OCC(=O)N(CCCCCCCCCC)CCCCCCCCCC)C(C)(C)C)c4OCC(=O)N(CCCCCCCCCC)CCCCCCCCCC)C(C)(C)C)c3OCC(=O)N(CCCCCCCCCC)CCCCCCCCCC)C(C)(C)C