Topczewski, Joseph J.; Lodge, Alexander M.; Yasapala, Sumana N.; Payne, Maurice K.; Keshavarzi, Pedrom M.; Quinn, Daniel M. Bioorganic and Medicinal Chemistry Letters, 2013, vol. 23, # 21 p. 5786 - 5789 doi: 10.1016/j.bmcl.2013.09.008