Using N#Cc1cccc(B(O)O)c1, CN1OC2(CC(c3ccccc3)COc3ccc(Br)cc32)N=C1N to produce CN1OC2(CC(c3ccccc3)COc3ccc(-c4cccc(C#N)c4)cc32)N=C1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.