Abstract
Four steroids, 5α,8α-epidioxy-(24ξ)-ergosta-6,22-dien-3β-ol (1), β-sitosterol (2), β-sitostenone (3), and stigmastenone (4), along with 10 known compounds were isolated from the whole plants of Leucaena leucocephala (Leguminosae). 1, Lupeol (5), 1,3-dipalmitoyl-2-oleoylglycerol (6), methylparabene (8) and isovanillic acid (9) were found for the first time from the species. The structure of these compounds were characterized and identified by spectra analyses.
Highlights
Leucaena leucocephala (Leguminosae) is a small, leguminous and native to tropical America, widely distributed in southern Asia and neighboring islands [1]
5α,8α-epidioxy-(24ξ)-ergosta-6,22-dien-3β-ol (1), β-sitosterol (2), β-sitostenone (3), and stigmastenone (4), along with 10 known compounds were isolated from the whole plants of Leucaena leucocephala (Leguminosae). 1, Lupeol (5), 1,3-dipalmitoyl-2-oleoylglycerol (6), methylparabene (8) and isovanillic acid (9) were found for the first time from the species
Previous studies have show that gallocatechin, epigallocatechin, catechin and epicatechin, extracted from the roots of L. leucocephala was found to exhibit the nitrification inhibition bioassay against the bacterium Nitrosomonas europaea [2]
Summary
Leucaena leucocephala (Leguminosae) is a small, leguminous and native to tropical America, widely distributed in southern Asia and neighboring islands [1]. 5α,8α-epidioxy-(24ξ)-ergosta-6,22-dien-3β-ol (1), β-sitosterol (2), β-sitostenone (3), and stigmastenone (4), along with 10 known compounds were isolated from the whole plants of Leucaena leucocephala (Leguminosae). Investigation on the MeOH extract of the plants has led to the isolation of 14 compounds, four steroids: 5α, 8α-epidioxy-(24ξ)-ergosta-6,22-dien-3β-ol (1) (Figure 1) [3], β-sitosterol (2) (Figure 2) [4], β-sitostenone (3) (Figure 3) and stigmastenone (4) (Figure 4) [5] ; one terpenoid: lupeol (5) [6]; one glyceride: 1,3-dipalmitoyl2-oleoylglycerol (6) [7]; one alkanoid: linoleic acid (7) [8]; two benzenoids: methylparabene (8) [9] and isovanillic acid (9) [10]; and five chlorophylls: pheophytin-a (10) [11], pheophorbide a methyl ester (11) [12], methyl-132- hydroxy-(132-S)-pheophorbide-b (12) [13], 132-hydroxy-(132-S)-pheophytin-a (13) [14] and aristophyll-C (14) [15].
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Similar Papers
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.