Planta Med 2000; 66(6): 511-515
DOI: 10.1055/s-2000-8654
Original Paper
Georg Thieme Verlag Stuttgart · New York

Chemical Constituents of Two Chinese Magnoliaceae Plants, Tsoongiodendron odorum and Manglietiastrum sinicum, and their Inhibition of Platelet Aggregation

Bin-Gui Wang, Xin Hong, Ling Li, Jun Zhou, Xiao-Jiang Hao*
  • Laboratory of Phytochemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
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Publication History

Publication Date:
31 December 2000 (online)

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Abstract

Phytochemical investigations of Tsoongiodendron odorum and Manglietiastrum sinicum, both Magnoliaceae, led to the isolation of twenty compounds in total. Among them, one was a new sesquiterpene, 11-O-oleoyl-β-eudesmol (2), and another, 1-(3,4-dimethoxypheny)-4-(3,4-methylenedioxyphenyl)-2,3-dimethylbutane (12) was isolated as a natural product for the first time. Moreover, 13C-NMR spectral data of isoguaiacin (16) are reported here for the first time. Structure elucidations for compounds reported here were mainly based on their spectral data. The ethanolic extracts of T. odorum and M. sinicum, and six pure compounds, 4(15)-eudesmen-11-ol (β-eudesmol) (1), 1β-hydroxy-4(15),11(13)-eudesmadien-12,6α-olide (reynosin) (3), 3,11(13)-eudesmadien-12,6α-olide (α-cyclocostunolide) (5), erythro-1-(4-hydroxy-3-methoxyphenyl)-4-(3,4-methylenedioxyphenyl)-2,3-dimethylbutane (11), nectandrin-B (18), and syringaresinol (19), displayed considerable inhibition against platelet aggregation induced by AA, by ADP, or by PAF.

References

Ph.D Prof. Xiao-Jiang Hao

Laboratory of Phytochemistry Kunming Institute of Botany Chinese Academy of Sciences

Kunming 650204

P.R. China

Email: xjhao@mail.kib.ac.cn

Phone: +86-871-5150227