Using O=c1[nH]ccc2c(Nc3c(Cl)cc(-c4ccn[nH]4)cc3Cl)nc3ccc(Br)cc3c12, CC(C)(O)/C=C/B(O)O to produce CC(C)(O)/C=C/c1ccc2nc(Nc3c(Cl)cc(-c4ccn[nH]4)cc3Cl)c3cc[nH]c(=O)c3c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.