Using CC(C)(C)OC(=O)Nc1cncc(CCc2cc(Nc3nc(Cl)ncc3Cl)ccc2NC(=O)OC(C)(C)C)c1 to produce Nc1cncc(CCc2cc(Nc3nc(Cl)ncc3Cl)ccc2N)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.