Using CCOC(=O)c1cc(-c2cccc3nc(C)c(NC(C)(C)C)nc23)[nH]c1C1(NC(=O)OC(C)(C)C)CC1 to produce Cc1nc2cccc(-c3cc(C(=O)O)c(C4(N)CC4)[nH]3)c2nc1NC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.