Using CCOC(=O)c1cnn2c(-c3cccc(C(F)(F)F)c3)ccnc12 to produce O=C([O-])c1cnn2c(-c3cccc(C(F)(F)F)c3)ccnc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.