Using O=C1NC(=O)c2ccccc21, CS(=O)(=O)OCCC(F)(F)COCc1ccccc1 to produce O=C1c2ccccc2C(=O)N1CCC(F)(F)COCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.