| Literature DB >> 32227943 |
Yongle Du1, Brooke A Martin1, Ana Lisa Valenciano2, Jason A Clement3, Michael Goetz3, Maria B Cassera2, David G I Kingston1.
Abstract
An extract of Galtonia regalis from the Natural Products Discovery Institute showed moderate antiplasmodial activity, with an IC50 value less than 1.25 μg/mL. The two known cholestane glycosides 1 and 2 and the five new cholestane glycosides galtonosides A-E (3-7) were isolated after bioassay-directed fractionation. The structures of the new compounds were determined by interpretation of their NMR and mass spectra. Among these compounds, galtonoside B (4) displayed the most potent antiplasmodial activity, with an IC50 value of 0.214 μM against the drug-resistant Dd2 strain of Plasmodium falciparum.Entities:
Year: 2020 PMID: 32227943 PMCID: PMC7183436 DOI: 10.1021/acs.jnatprod.9b01064
Source DB: PubMed Journal: J Nat Prod ISSN: 0163-3864 Impact factor: 4.050