Using O=C1OC(CCO)(c2ccccc2)CCN1c1cccc(-c2ccc(F)cc2F)c1 to produce O=C(O)CC1(c2ccccc2)CCN(c2cccc(-c3ccc(F)cc3F)c2)C(=O)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.