... 1982,21,575. 1979, 24, 2475. USA 1980, 77, 5547. USA 1983,80, 2077. Res. 1982,237, 203. This article not subject to US Copyright. Published 1985 by the American Chemical Society Page 2. 488 Journal of Medicinal Chemistry, 1985, Vol. 28, No. 4 Daly et al. ...