Using CCOC(=O)C1(CC)CCN(c2ncc(-c3cc(-c4ccccn4)c(N)c([N+](=O)[O-])c3)cn2)CC1 to produce CCOC(=O)C1(CC)CCN(c2ncc(-c3cc(N)c(N)c(-c4ccccn4)c3)cn2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.