Abstract
In an ongoing investigation of compounds from natural products that exhibit anti-aging properties, hydroxyhibiscone A (1), a new furanosesquiterpenoid, together with hibiscone D (2), was isolated from the root bark of Hibiscus syriacus. Utilizing UV, IR, NMR, and MS spectroscopic analyses, these chemical structures were revealed. Compounds 1 and 2 were found to possess significant anti-aging properties on the human neutrophil elastase (HNE) assay, exhibiting HNE inhibitory activities with IC50 values of 5.2 and 4.6 micronM, respectively.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Hibiscus / chemistry*
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Hibiscus / metabolism
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Humans
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Leukocyte Elastase / analysis
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Leukocyte Elastase / antagonists & inhibitors*
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Leukocyte Elastase / metabolism
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Molecular Structure
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Plant Extracts / chemistry
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Plant Extracts / metabolism
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Plant Extracts / pharmacology*
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Proteinase Inhibitory Proteins, Secretory / chemistry
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Proteinase Inhibitory Proteins, Secretory / metabolism
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Proteinase Inhibitory Proteins, Secretory / pharmacology*
Substances
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Plant Extracts
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Proteinase Inhibitory Proteins, Secretory
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Leukocyte Elastase