Alkaloids from Strychnos floribunda.
From Strychnos floribunda stem bark extracts, the alkaloids bisnordihydrotoxiferine, akagerine, decussine, rouhamine, Strychnocarpine, desacetylisoretuline and isorosibiline were isolated as well as a mixture of the sterols beta-sitosterol, stigmasterol and campesterol. Isorosibiline is a new indole alkaloid derived form desacetylisoretuline, having C-16 configuration inverted to that of rosibiline.
Verpoorte
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Department of Pharmacognosy, Gorlaeus Laboratories, University of Leiden, Leiden, The Netherlands.
Joosse
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Groenink
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Svendsen
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