Using OC(CCl)CCc1cccnc1, Oc1ccc(-c2cccc(Cl)c2)cc1 to produce OC(CCc1cccnc1)COc1ccc(-c2cccc(Cl)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.