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Sarpagine-related ajmaline alkaloids

Total Synthesis of Sarpagine-Related Ajmaline Alkaloids 162... [Pg.64]

Total Synthesis of Sarpagine-Related Ajmaline Alkaloids 5.5.7 Stereocontrolled Total Synthesis of (-)-Vincamajinine (291)... [Pg.162]

Illustrated in Tables 2—6 are the structures of the recently isolated (since year 2000) sarpagine-related indole alkaloids, along with their key physicochemical properties. They have been classified into sarpagine-type, macroline-type, ajmaline-type, sarpagine/macroline oxindoles, and bisindole alkaloids containing sarpagine/macroHne monomeric units for ease of illustration. [Pg.71]

Advances in the chemistry of macroline, sarpagine, and ajmaline-related indole alkaloids 06T8655. [Pg.37]

The pair corynantheine-corynantheidine plays an important role in that a number of alkaloids of other structural types can be transformed into derivatives of either of this pair. The configuration a of C-15,H can thus be assigned to ajmaline (CXIII) because it can be transformed into two isomers of CXV, one of which on further transformation yields a tetracyclic derivative (CXV) related to corynantheidine (75). The same sequence of reactions applied to isoajmaline (epimeric at C-20 with ajmaline) gives a derivative of corynantheine (75). Sarpagine (CXVI)... [Pg.719]

See other pages where Sarpagine-related ajmaline alkaloids is mentioned: [Pg.66]    [Pg.785]    [Pg.135]    [Pg.64]    [Pg.65]    [Pg.137]    [Pg.808]    [Pg.340]    [Pg.344]   
See also in sourсe #XX -- [ Pg.162 ]



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