Using CC1(C)OB(c2cc(Cl)nc(Cl)c2)OC1(C)C, Clc1ccn2c(Br)cnc2c1 to produce Clc1ccn2c(-c3cc(Cl)nc(Cl)c3)cnc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.