Using Clc1cc(C(Cl)(Cl)Cl)cc(Cl)n1, OCCOc1ccccc1 to produce Clc1cc(C(Cl)(Cl)Cl)cc(OCCOc2ccccc2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.