(untitled) - Tamura,S.Y.; Semple,J.E.; Reiner,J.E.; Goldman,E.A.; Brunck,T.K.; Lim-Wilby,M.S.; Carpenter,S.H.; Rote,W.E.; Oldeshulte,G.L.; Richard,B.M.; Nutt,R.F.; Ripka,W.C. (Bioorg. Med. Chem. Lett., 1997)