Using Clc1cncc(Nc2ccc3cc[nH]c3c2)n1, OB(O)c1ccncc1 to produce c1cc(-c2cncc(Nc3ccc4cc[nH]c4c3)n2)ccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.