Using CCCCCCCCCCCCn1nnc(C(F)(C(=O)OCC)c2ccccc2)n1 to produce CCCCCCCCCCCCn1nnc(C(F)(C(=O)O)c2ccccc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.