(untitled) - Zarrinmayeh,H.; Zimmerman,D.M.; Cantrell,B.E.; Schober,D.A.; Bruns,R.F.; Gackenheimer,S.L.; Ornstein,P.L.; Hipskind,P.A.; Britton,T.C.; Gehlert,D.R. (Bioorg. Med. Chem. Lett., 1999)