Using C1=COCCC1, Brc1ccccc1/C=C/c1n[nH]c2ccccc12 to produce Brc1ccccc1C=Cc1nn(C2CCCCO2)c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.