Abstract
A new halimane diterpene, 3beta,5beta, 16alpha-trihydroxyhalima-13(14)-en-15,16-olide (1), and a new oxoprotoberberine alkaloid, (-)-8-oxopolyalthiaine (2), along with 20 known compounds, were isolated from a methanolic extract of Polyalthia longifolia var. pendula. The structures of compounds 1 and 2 were established by spectroscopic analysis. Several of these compounds were evaluated for cytotoxicity toward a small panel of human cell lines.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Alkaloids / isolation & purification*
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Alkaloids / pharmacology
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Antineoplastic Agents, Phytogenic / isolation & purification*
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Antineoplastic Agents, Phytogenic / pharmacology
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Berberine Alkaloids*
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Diterpenes / isolation & purification*
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Diterpenes / pharmacology
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Drug Screening Assays, Antitumor
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Humans
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Magnetic Resonance Spectroscopy
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Plant Extracts / chemistry
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Plant Extracts / pharmacology
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Plants, Medicinal / chemistry*
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Spectrophotometry, Ultraviolet
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Tumor Cells, Cultured
Substances
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3,5,16-trihydroxyhalima-13(14)-en-15,16-olide
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8-oxopolyalthiaine
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Alkaloids
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Antineoplastic Agents, Phytogenic
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Berberine Alkaloids
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Diterpenes
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Plant Extracts