Using N#Cc1cccc(B(O)O)c1, C=C1CC(c2ccccc2)Oc2ccc(Br)cc21 to produce C=C1CC(c2ccccc2)Oc2ccc(-c3cccc(C#N)c3)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.