JOURNAL ARTICLE
Two new C-15 enolic acyl phragmalin-type limonoids from Chukrasia tabularis var. velutina
Jun LuoYi LiJunsong WangLingyi Kong
Year: 2012 Journal: Natural Product Research Vol: 27 (7)Pages: 597-602 Publisher: Taylor & Francis
Abstract
Two new C-15 enolic acyl phragmalin-type limonoid orthoesters, chukvelutilide G (1) and chukrasine F (2), were isolated from the stem barks of Chukrasia tabularis var. velutina. Their structures were elucidated by their extensive high resolution-electrospray ionization mass spectrometry (HR-ESI-MS), one- and two-dimensional spectroscopic analysis, including heteronuclear single quantum coherence (HSQC), HMBC and NOESY experiments.
Keywords:
Heteronuclear single quantum coherence spectroscopy Limonoid Chemistry Two-dimensional nuclear magnetic resonance spectroscopy Stereochemistry Heteronuclear molecule Electrospray ionization Mass spectrometry Magnoliaceae Terpene Nuclear magnetic resonance spectroscopy Botany Biology Chromatography
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Topics
Phytochemical compounds biological activities
Life Sciences → Biochemistry, Genetics and Molecular Biology → Molecular Biology
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