Using [NH4+], COC1CNCCN1C(=O)OCc1ccc([N+](=O)[O-])cc1 to produce N=C1CN(C(=O)OCc2ccc([N+](=O)[O-])cc2)CCN1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.