Using COC(=O)C1=C(C)NC(SCc2ccc(OC)cc2)=NC1c1cccc([N+](=O)[O-])c1, C=CCBr to produce C=CCN1C(SCc2ccc(OC)cc2)=NC(C)=C(C(=O)OC)C1c1cccc([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.