Mayombensin, a New Azadirachtin I Derivative with Unusual Structure from Guarea mayombensis

Abstract A new highly oxidized tetranortriterpenoid, named mayombensin ( 1 ), was isolated from the twigs of Guarea mayombensis together with five known compounds and, further, two ceramides, 3,4-dimethyl-secotirucalla-4(28),7,24-trien-3,21-dioic acid ( 3 ), the glucosides of stigmasterol and β -sit...

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Published in:Planta Medica International Open (Online) 2017-06, Vol.4 (3), p.e104-e107
Main Authors: Djeukeu, Charlie, Tala, Michel Feussi, Akak, Carine Mvot, Azebaze, Anatole Guy Blaise, Wafo, Alain Francois Kamdem, Wansi, Jean Duplex, Vardamides, Juliette Catherine, Laatsch, Hartmut
Format: Article
Language:English
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Summary:Abstract A new highly oxidized tetranortriterpenoid, named mayombensin ( 1 ), was isolated from the twigs of Guarea mayombensis together with five known compounds and, further, two ceramides, 3,4-dimethyl-secotirucalla-4(28),7,24-trien-3,21-dioic acid ( 3 ), the glucosides of stigmasterol and β -sitosterol, and the respective aglyca. The structure of 1 was elucidated by detailed NMR analysis and confirmed as a novel azadirachtin homologue.
ISSN:2509-9264
2509-6656
DOI:10.1055/s-0043-120070