Using CCOC(=O)c1c[nH]cc1-c1nc(OC)ccc1NC(=O)OCc1ccccc1, O=C([O-])O to produce CCOC(=O)c1c[nH]c2cnc3ccc(OC)cc3c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.