Author's Organization:Faculty of Pharmaceutical Sciences, Toyama Medical and Pharmaceutical University Faculty of Pharmaceutical Sciences, Toyama Medical and Pharmaceutical University Faculty of Pharmaceutical Sciences, Toyama Medical and Pharmaceutical University
Syntheses of 5, 9- and 8, 13-diazasteroids (15) and (19) employing reductive annulation with LiAlH4 are described. The stereochemistry of 15 and 19 is discussed.