Using O=C1CCc2cc(Br)c([N+](=O)[O-])cc21, C=CB(OCCCC)OCCCC to produce C=Cc1cc2c(cc1[N+](=O)[O-])C(=O)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.