Abstract
Five new 3,4-seco-cycloartanes, sootepins A-E (1-5), along with four known triterpenes (6-9), were isolated from the apical buds of Gardenia sootepensis. Their structures were elucidated on the basis of spectroscopic methods (1D and 2D NMR, HRESIMS, and X-ray crystallography), and the compounds were tested for in vitro cytotoxic activity against human breast (BT474), lung (CHAGO), liver (Hep-G2), gastric (KATO-3), and colon (SW-620) cancer cell lines. Generally, the compounds possessing an exomethylene gamma-lactone ring showed broad cytotoxicity for all cell lines tested.
MeSH terms
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Antineoplastic Agents, Phytogenic / chemistry
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Antineoplastic Agents, Phytogenic / isolation & purification*
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Antineoplastic Agents, Phytogenic / pharmacology*
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Crystallography, X-Ray
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Drug Screening Assays, Antitumor
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Female
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Gardenia / chemistry*
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Humans
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Molecular Conformation
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Molecular Structure
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Nuclear Magnetic Resonance, Biomolecular
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Plants, Medicinal / chemistry*
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Structure-Activity Relationship
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Thailand
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Triterpenes / chemistry
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Triterpenes / isolation & purification*
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Triterpenes / pharmacology*
Substances
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Antineoplastic Agents, Phytogenic
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Triterpenes
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cycloartane