The alkaloids of Lycopodium cernuum L. II. The stereochemistry of cernuine and lycocernuine

Abstract
The relative stereochemistries of cernuine (I) and lycocernuine (n) have been derived by a combination of chemical and physical methods. Evidence is presented which indicates that I and II also represent the absolute stereochemistry of these alkaloids. The stereochemistry of allocernuine is discussed, and the isomerization of allocernuine into epiallocernuine is described.