Using O=C(NCc1ccc(C(O)C(F)(F)F)cc1)c1cccnc1Oc1cccnc1 to produce O=C(NCc1ccc(C(=O)C(F)(F)F)cc1)c1cccnc1Oc1cccnc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.