Chemical constituents of Syzygium samarangense
The dichloromethane extract of the leaves of Syzygium samarangense (Blume) Merr. & Perry afforded 2′,4′- dihydroxy-6′-methoxy-3′-methylchalcone (1), 2′,4′-dihydroxy-6′-methoxy-3′,5′-dimethylchalcone (2), 2′-hydroxy- 4′,6′-dimethoxy-3′-methyl chalcone (3), squalene (4), betulin (5), lupeol (6), s...
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oai:animorepository.dlsu.edu.ph:faculty_research-21792022-06-16T08:05:31Z Chemical constituents of Syzygium samarangense Ragasa, Consolacion Y. Franco, Francisco C., Jr. Raga, Dennis D. Shen, Chien Chang The dichloromethane extract of the leaves of Syzygium samarangense (Blume) Merr. & Perry afforded 2′,4′- dihydroxy-6′-methoxy-3′-methylchalcone (1), 2′,4′-dihydroxy-6′-methoxy-3′,5′-dimethylchalcone (2), 2′-hydroxy- 4′,6′-dimethoxy-3′-methyl chalcone (3), squalene (4), betulin (5), lupeol (6), sitosterol (7), and a mixture of cycloartenyl stearate (8a), lupenyl stearate (8b), β-sitosteryl stearate (8c), and 24-methylenecycloartenyl stearate (8d). The structures of 1-3, 5, 7, and 8a-8d were elucidated by 1D and 2D NMR spectroscopy. Sample 8 was tested for hypoglycemic and antimicrobial potentials. It showed negative hypoglycemic potential and exhibited moderate antifungal activity against C. albicans, low activity against T. mentagrophytes and low antibacterial activity against E. coli, S. aureus and P. aeruginosa. It was inactive against B. subtilis and A. niger. 2014-01-01T08:00:00Z text https://animorepository.dlsu.edu.ph/faculty_research/1180 Faculty Research Work Animo Repository Syzygium--Analysis Chemistry |
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Syzygium--Analysis Chemistry Ragasa, Consolacion Y. Franco, Francisco C., Jr. Raga, Dennis D. Shen, Chien Chang Chemical constituents of Syzygium samarangense |
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The dichloromethane extract of the leaves of Syzygium samarangense (Blume) Merr. & Perry afforded 2′,4′- dihydroxy-6′-methoxy-3′-methylchalcone (1), 2′,4′-dihydroxy-6′-methoxy-3′,5′-dimethylchalcone (2), 2′-hydroxy- 4′,6′-dimethoxy-3′-methyl chalcone (3), squalene (4), betulin (5), lupeol (6), sitosterol (7), and a mixture of cycloartenyl stearate (8a), lupenyl stearate (8b), β-sitosteryl stearate (8c), and 24-methylenecycloartenyl stearate (8d). The structures of 1-3, 5, 7, and 8a-8d were elucidated by 1D and 2D NMR spectroscopy. Sample 8 was tested for hypoglycemic and antimicrobial potentials. It showed negative hypoglycemic potential and exhibited moderate antifungal activity against C. albicans, low activity against T. mentagrophytes and low antibacterial activity against E. coli, S. aureus and P. aeruginosa. It was inactive against B. subtilis and A. niger. |
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Ragasa, Consolacion Y. Franco, Francisco C., Jr. Raga, Dennis D. Shen, Chien Chang |
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Ragasa, Consolacion Y. Franco, Francisco C., Jr. Raga, Dennis D. Shen, Chien Chang |
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Ragasa, Consolacion Y. |
title |
Chemical constituents of Syzygium samarangense |
title_short |
Chemical constituents of Syzygium samarangense |
title_full |
Chemical constituents of Syzygium samarangense |
title_fullStr |
Chemical constituents of Syzygium samarangense |
title_full_unstemmed |
Chemical constituents of Syzygium samarangense |
title_sort |
chemical constituents of syzygium samarangense |
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Animo Repository |
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2014 |
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https://animorepository.dlsu.edu.ph/faculty_research/1180 |
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