Using COc1cc(CCC(=O)Nc2cccc([N+](=O)[O-])c2)cc(OC)c1OC to produce COc1cc(CCC(=O)Nc2cccc(N)c2)cc(OC)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.