Using CNCC(=O)OC, O=C(O)Cc1cccc([N+](=O)[O-])c1 to produce COC(=O)CN(C)C(=O)Cc1cccc([N+](=O)[O-])c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.