Abstract
Two new heteroyohimbine-type oxindole alkaloids, rauniticine-allo-oxindole B and rauniticinic-allo acid B, have been successfully isolated from the stems extract of Malaysian Uncaria longiflora var. pteropoda. The structures of the two new alkaloids were determined by spectroscopic analysis.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Alkaloids / chemistry
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Alkaloids / isolation & purification*
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Antirheumatic Agents / pharmacology
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Antirheumatic Agents / therapeutic use
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Humans
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Indoles / chemistry
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Indoles / isolation & purification*
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Magnetic Resonance Spectroscopy
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Methanol / chemistry
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Oxindoles
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Phytotherapy / methods*
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Plant Extracts / chemistry
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Plant Extracts / isolation & purification*
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Plant Stems / chemistry
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Rheumatic Diseases / drug therapy
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Rheumatic Diseases / pathology
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Uncaria / chemistry*
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Yohimbine / analogs & derivatives
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Yohimbine / chemistry
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Yohimbine / isolation & purification*
Substances
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Alkaloids
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Antirheumatic Agents
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Indoles
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Oxindoles
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Plant Extracts
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2-oxindole
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Yohimbine
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Methanol