Miller, John F.; Brieger, Michael; Furfine, Eric S.; Hazen, Richard J.; Kaldor, Istvan; Reynolds, David; Sherrill, Ronald G.; Spaltenstein, Andrew Bioorganic and Medicinal Chemistry Letters, 2005, vol. 15, # 15 p. 3496 - 3500 doi: 10.1016/j.bmcl.2005.05.129