Using COC(=O)C(N)Cc1ccc([N+](=O)[O-])cc1 to produce COC(=O)CNC(Cc1ccc([N+](=O)[O-])cc1)C(=O)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.