Using COc1cc(OCC(O)CN2CCN(c3ccccc3[N+](=O)[O-])CC2)cc(OC)c1OC to produce COc1cc(OCC(O)CN2CCN(c3ccccc3N)CC2)cc(OC)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.