Using Cc1ccc(F)c2c1CCCO2, O=C1OC(=O)c2ccccc21 to produce Cc1c(C(=O)c2ccccc2C(=O)O)cc(F)c2c1CCCO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.