Using CC(=O)O, Cc1c(Nc2ncccc2C(=O)O)cccc1C(F)(F)F to produce Cc1c(Nc2ncc(O)cc2C(=O)O)cccc1C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.