Using O=C(O)C(F)(F)F, CCCCCCCc1cc(=O)c2ccccc2[nH]1 to produce CCCCCCCc1[nH]c2ccccc2c(=O)c1C=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.