Using OB(O)c1cncc2ccccc12, Cc1cccc(-c2cc(Cl)c3cccnc3n2)n1 to produce Cc1cccc(-c2cc(-c3cncc4ccccc34)c3cccnc3n2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.