Using O=C(O)Cc1cccc(O)c1, O=Cc1cc(C(F)(F)F)ccc1F to produce O=Cc1cc(C(F)(F)F)ccc1Oc1cccc(CC(=O)O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.