Using Brc1cnc2c(c1)NCCO2, COc1cncc(B2OC(C)(C)C(C)(C)O2)c1 to produce COc1cncc(-c2cnc3c(c2)NCCO3)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.