Using COC(=O)CN, O=C(Cl)Oc1ccc([N+](=O)[O-])cc1 to produce COC(=O)CNC(=O)Oc1ccc([N+](=O)[O-])cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.