Using CCCCCCC(Nc1ccc(C(=O)OC)cc1)c1cc2cc(Cl)ccc2n1C to produce CCCCCCC(Nc1ccc(C(=O)O)cc1)c1cc2cc(Cl)ccc2n1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.