Using CCN(CC(=O)N1CCOc2cc([N+](=O)[O-])ccc21)C(=O)OC(C)(C)C to produce CCN(CCN1CCOc2cc([N+](=O)[O-])ccc21)C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.