Using CC(C)(C)OC(=O)Nc1ccc(Nc2n[nH]c3ncnc(Nc4cccc(Cl)c4)c23)cc1 to produce Nc1ccc(Nc2n[nH]c3ncnc(Nc4cccc(Cl)c4)c23)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.