• Title/Summary/Keyword: ${\alpha},{\beta\}-unsaturated$ sesquieterpenoid lactone

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Cumambrin A in Chrysanthemum boreale Makino Preparation, X-ray Crystal Structure and $^{13}C-$ and $^1H$-NMR Study of Cumambrin A

  • Park, Ki-Hun;Jang, Dae-Sik;Choi, Sang Uk;Nam, Sang-Hae;Shiro, Mooto;Yang, Min-Suk
    • Korean Journal of Pharmacognosy
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    • v.27 no.3
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    • pp.207-211
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    • 1996

  • Cumambrin A has been isolated from the dried flowers of Chrysanthemum boreale Makino. The complete $^1H$ and $^{13}C$ NMR assignment of cumambrin A was achieved from two-dimensional $^1H$-$^1H$ COSY and $^{13}C$-$^1H$ COSY spectra with the aid of homonuclear and heteronuclear double resonance experiments. The its structure has been verified by single crystal X-ray diffraction.

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