Using ClCc1ccccn1, COc1cc(-c2cnn(C)c2)cn2ncc(-c3cn[nH]c3)c12 to produce COc1cc(-c2cnn(C)c2)cn2ncc(-c3cnn(Cc4ccccn4)c3)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.