Using OB(O)c1cc(Cl)cc(Cl)c1, N#Cc1c(N)ccc(Br)c1Cl to produce N#Cc1c(N)ccc(-c2cc(Cl)cc(Cl)c2)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.