Using CC(OS(C)(=O)=O)C(C)(C)C(O)(Cn1cncn1)c1ccc(Cl)cc1Cl to produce CC1OC(Cn2cncn2)(c2ccc(Cl)cc2Cl)C1(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.