Using CNC(=O)c1cccc(-c2cnn3c(Br)cnc3c2)c1, OB(O)c1ccnc(Cl)c1 to produce CNC(=O)c1cccc(-c2cnn3c(-c4ccnc(Cl)c4)cnc3c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.