Using Cc1nn(-c2c(Cl)cc(C(F)(F)F)cc2Cl)nc1CO to produce Cc1nn(-c2c(Cl)cc(C(F)(F)F)cc2Cl)nc1C=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.