Abstract
Five new bisdesmosidic saponins (1--5) were isolated from the aerial parts of Tupidanthus calyptratus. Their structures were determined by (1)H--(1)H correlation spectroscopy (COSY, TOCSY, ROESY) and (1)H--(13)C correlation (HSQC, HMBC) NMR experiments, FABMS, and chemical data.
MeSH terms
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Antineoplastic Agents, Phytogenic / pharmacology
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Drug Screening Assays, Antitumor
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Humans
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Italy
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Magnetic Resonance Spectroscopy
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Oligosaccharides / chemistry
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Plants, Medicinal / chemistry*
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Saponins / chemistry*
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Saponins / isolation & purification
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Spectrometry, Mass, Fast Atom Bombardment
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Triterpenes / chemistry*
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Triterpenes / isolation & purification
Substances
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Antineoplastic Agents, Phytogenic
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Oligosaccharides
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Saponins
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Triterpenes