Using Cc1cc(Nc2nccc3nc(-c4c(Cl)cc(NC(=O)OC(C)(C)C)cc4Cl)sc23)ncn1 to produce Cc1cc(Nc2nccc3nc(-c4c(Cl)cc(N)cc4Cl)sc23)ncn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.