Using CCOC=C(C(C)=O)C(=O)OCC, O=[N+]([O-])c1cn[nH]c1 to produce CCOC(=O)C(=CNc1cn[nH]c1)C(C)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.