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논문 기본 정보

자료유형
학술저널
저자정보
Laurent Voufack Lefack Bongmo (University of Douala) Achille Nouga Bissoue (University of Douala) Samuel Magloire Bissim (University of Bamenda) Georges Bellier Tabekoueng (University of Douala) Willifred Dongmo Tekapi Tsopgni (University of Douala) Mehreen Lateef (Bahria University) Félicien Mushagalusa Kasali (Official University of Bukavu) Muhammad Shaiq Ali (University of Karachi) Alain François Kamdem Waffo (University of Douala) Jean Duplex Wansi (University of Douala)
저널정보
한국생약학회 Natural Product Sciences Natural Product Sciences Vol.29 No.1
발행연도
2023.3
수록면
50 - 66 (17page)
DOI
10.20307/nps.2023.29.1.50

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The phytochemical investigation of the crude methanolic extracts roots and stem bark of Anthonotha cladantha (Harms) J.Léonard led to the isolation and identification of twelve secondary metabolites: 2,3-dihydroxypropyl hexacosanoate (1), hederagenine (2), cycloeucalenol (3), 2α-hydroxylupeol (4), betulinic acid (5), lupeol (6), heptacosan-2-one (7), triacontanoic acid (8), stigmast-4-en-3-one (9), β-sitosterol (10), stigmasterol (11), and stigmasterol-3-O-β-D-glucopyranoside (12). Their structures were elucidated with the help of their spectroscopic and physical data and by comparison with those reported in the literature. To the best of our knowledge, from all those compounds, 2,3-dihydroxypropyl hexacosanoate (1), hederagenine (2), cycloeucalenol (3), 2α-hydroxylupeol (4), and betulinic acid (5) are being reported for the first time from this genus. In addition, the acetylation of compound 1 afforded a new derivative 3-(hexacosanoyloxy)propane-1,2-diyl diacetate (1a). Compound 1 possessed a moderate α-glucosidase inhibitory activity with an IC<SUB>50</SUB> value of 39.2 ± 0.22 μM; it neither showed antioxidant activity nor inhibition against the enzyme urease. Compound 1a exhibited weak antioxidant activity in the DPPH assay with an IC<SUB>50</SUB> value of 80.3 ± 0.83 μM but was inactive against α-glucosidase and urease. Furthermore, both compounds 1 and 1a were inactive against seven pathogenic bacterial strains.

목차

Abstract
Introduction
Experimental
Results and Discussion
Conclusion
References

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