Using CC(O)(CN)C(F)(F)F, O=C(OCc1ccccc1)ON1C(=O)CCC1=O to produce CC(O)(CNC(=O)OCc1ccccc1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.