Using Cc1cc(NC(=O)c2cnn3cccnc23)c(Br)cn1, OB(O)c1cc(Cl)ccc1Cl to produce Cc1cc(NC(=O)c2cnn3cccnc23)c(-c2cc(Cl)ccc2Cl)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.