Using C1=COCCC1, O=C(Nc1ccc(CCO)cc1Cl)C(F)(F)F to produce O=C(Nc1ccc(CCOC2CCCCO2)cc1Cl)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.