Using COC(=O)CC1CN(Cc2ccccc2)CCN1c1ncccc1[N+](=O)[O-] to produce O=C1CC2CN(Cc3ccccc3)CCN2c2ncccc2N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.