Using CC1(C)OB(c2cn[nH]c2)OC1(C)C, CN1c2cc(Br)sc2C(=O)NC1(C)C to produce CN1c2cc(-c3cn[nH]c3)sc2C(=O)NC1(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.