DeNinno, Michael P.; Masamune, Hiroko; Chenard, Lois K.; DiRico, Kenneth J.; Eller, Cynthia; Etienne, John B.; Tickner, Jeanene E.; Kennedy, Scott P.; Knight, Delvin R.; Kong, Jimmy; Oleynek, Joseph J.; Tracey, W. Ross; Hill, Roger J. Journal of Medicinal Chemistry, 2003, vol. 46, # 3 p. 353 - 355 doi: 10.1021/jm0255724