Using O=C(OC(=O)C(F)(F)F)C(F)(F)F, O=C(OCC(Cl)(Cl)Cl)N1CC=CC1 to produce O=C(OCC(Cl)(Cl)Cl)N1CC2OC2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.