Using CSc1cc(C(C)C)ccc1-n1c(=O)n(CC(=O)O)c2c(Cl)nc(C)nc21, CN1CCOCC1 to produce CSc1cc(C(C)C)ccc1-n1c(=O)n(CC(N)=O)c2c(Cl)nc(C)nc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.