Using CCOC(=O)c1cc(C(=O)OCC)c2c(Cl)cc(Cl)cc2n1 to produce CCOC(=O)c1cc(C(=O)O)nc2cc(Cl)cc(Cl)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.