Using CC(=O)c1ccc(Br)c([N+](=O)[O-])c1, C=CB(OCCCC)OCCCC to produce C=Cc1ccc(C(C)=O)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.