Using CCOc1cc(CN2CCC(Nc3nc4cc([N+](=O)[O-])ccc4o3)CC2)ccc1OC to produce CCOc1cc(CN2CCC(Nc3nc4cc(N)ccc4o3)CC2)ccc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.