Using CCOC(=O)c1nc(-c2ccc(OC(F)(F)F)cc2)no1, NNCc1ccccc1 to produce O=C(NNCc1ccccc1)c1nc(-c2ccc(OC(F)(F)F)cc2)no1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.