Using CCOC(=O)C1(CC)CCN(c2ncc(B3OC(C)(C)C(C)(C)O3)cn2)CC1, Nc1ccc(Br)cc1[N+](=O)[O-] to produce CCOC(=O)C1(CC)CCN(c2ncc(-c3ccc(N)c([N+](=O)[O-])c3)cn2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.