Using CCOC(=O)CCC(=O)c1cccc(C(=O)c2ccc(Cl)cc2)c1N to produce Nc1c(C(=O)CCC(=O)O)cccc1C(=O)c1ccc(Cl)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.