Finke; Shah; Ashe; Ball; Blacklock; Bonney; Brause; Chandler; Cotton; Davies; Dellea; Dorn Jr.; Fletcher; O'Grady; Hagmann; Hand; Knight; Maycock; Mumford; et al. Journal of Medicinal Chemistry, 1992, vol. 35, # 21 p. 3731 - 3744 doi: 10.1021/jm00099a002