Using CCOC(=O)CC(=O)C(=O)OCC, O=c1[nH]c2c(Cl)cccc2c(=O)o1 to produce CCOC(=O)c1nc2c(Cl)cccc2c(O)c1C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.