Sarpagine group, indole alkaloids

The term sarpagine related is employed herein to define this group of alkaloids. The number of sarpagine-related indole alkaloids that have been isolated has increased rapidly. At this time, the group contains more than 200 alkaloids, of which more than 150 are monomeric indoles. The remainder belongs to the bisindole class of alkaloids. The biogenetic... 

For unexplained reasons the formulae intended for page 122 (Table II) in our recent review "The Sarpagine Group of Indole Alkaloids" in Vol. 32 of the present series were accidently replaced by the formulae intended for page 123, and which were thus presented twice. The correct page 122 is reproduced below (next page). 

This intermediate was used to prepare several indole alkaloids of the ajmaline-sarpagine group [333]. The method has also been used to synthesize examples of the fumitremorgin group [334]. Lewis has summarized application of these and other methods to alkaloid synthesis [335]. 

Sarpagine alkaloids which belong to the family of 3-oxygenated alkaloids are rare, but are an important group of indole alkaloids because they comprise key components of a group of bisindole alkaloids with interesting biological... 

Contents J. L. INGHAM Naturally Occurring Isoflavonoids (1855—1981). — A. KOSKINEN and M. LOUNASMAA The Sarpagine-Ajmaline Group of Indole Alkaloids. 

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