Using Fc1ccc(Cl)cc1-c1cc(Cl)c2cccnc2n1, OB(O)c1cncc(-c2ccccc2)c1 to produce Fc1ccc(Cl)cc1-c1cc(-c2cncc(-c3ccccc3)c2)c2cccnc2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.