Using C#CC(O)(c1ccc(OCCCN(CCC)CCC)cc1)c1ccc(Cl)cc1Cl to produce CCCN(CCC)CCCOc1ccc(C(O)(CC)c2ccc(Cl)cc2Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.