Using Cc1c(CC=CCCC(=O)O)cccc1C(=O)c1ccc(Cl)cc1 to produce Cc1c(CCCCCC(=O)O)cccc1C(=O)c1ccc(Cl)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.