Using CC(C)Br, Cc1nn(C(C)(C)c2nnc[nH]2)cc1[N+](=O)[O-] to produce Cc1nn(C(C)(C)C2(C(C)C)N=CNN2)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.