Using COC1(OC)CCN(c2ccc(OC[C@H]3CCn4cc([N+](=O)[O-])nc4O3)cc2)CC1 to produce O=C1CCN(c2ccc(OC[C@H]3CCn4cc([N+](=O)[O-])nc4O3)cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.