| Literature DB >> 29162457 |
Namki Cho1, Yongle Du1, Ana Lisa Valenciano2, Maria L Fernández-Murga3, Michael Goetz4, Jason Clement4, Maria B Cassera2, David G I Kingston5.
Abstract
A bioassay-guided fractionation and chemical investigation of Amaryllis belladonna Steud. bulbs resulted in the isolation and identification of the new crinane alkaloid 1,4-dihydroxy-3-methoxy powellan (1), along with the 3 known crinane alkaloids 2-4 and the two lycorane alkaloids 5-6. The structures were elucidated by interpretation of combined HR-ESIMS, CD and 2D NMR spectroscopic data. Among these isolated compounds the lycorane-type alkaloid acetylcaranine (5) exhibited strong antiplasmodial activity, while compounds 3 and 4 were moderately active, and compounds 1 and 6 were inactive.Entities:
Keywords: Amaryllis belladonna; Antiplasmodial; Bioassay-guided; Crinane; Lycorine
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Year: 2017 PMID: 29162457 PMCID: PMC5753767 DOI: 10.1016/j.bmcl.2017.11.021
Source DB: PubMed Journal: Bioorg Med Chem Lett ISSN: 0960-894X Impact factor: 2.823