Using CCc1[nH]nc(C(C)O)c1Oc1cc(C#N)cc(C#N)c1, BrCCOC1CCCCO1 to produce CCc1c(Oc2cc(C#N)cc(C#N)c2)c(C(C)O)nn1CCOC1CCCCO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.