Abietane diterpenes from Illicium angustisepalum.
Twelve novel (1, 2, 4, 5, 7-14) and two known (3, 6) abietane diterpenes and have been isolated from the aerial parts of Illicium angustisepalum. These diterpenes are unusual in that they are oxygenated at the axial C-19 position of the gem-dimethyl group rather than the equatorial C-18 position.
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Chemistry Department, The University of Hong Kong, Pokfulam Road, Hong Kong.
Brown
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D002240:Carbohydrate Sequence; D002681:China; D002851:Chromatography, High Pressure Liquid; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008968:Molecular Conformation; D008969:Molecular Sequence Data; D010936:Plant Extracts / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
D004224:Diterpenes; D010936:Plant Extracts