New Humulane-Type Sesquiterpenes from the Liverworts Tylimanthus tenellus and Marchantia emarginata subsp. tosana

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概要

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• The ether extract of the New Zealand liverwort Tylimanthus tenellus produced three new sesquiterpenes, together with (+) -3, 11-eudesmadiene and (-) -4 (15), 11-eudesmadiene which were enantiomeric to those isolated from higher plants. The structures of the new sesquiterpenes were established by 2D NMR spectral data and/or X-ray crystallographic analysis. Those structures were shown to be huniulane type sesquiterpene alcohol, and its esters of 2, 4-hexadienedioic acid 3, 4-dihydroxy-2, 5-diphenyl-γ-lactone. 1, 6-Humuladien-10-ol was also isolated from Japanese liverwort Marchantia emarginata subsp. tosana. The absolute configuration of 1, 6-humuladien-10-ol was determined by ^1H-NMR resolution of its diastereomeric methoxy-α-trifluoromethylphenylacetyl (MTPA) esters. It was shown to be (3S, 10R) -1, 6-humuladien-10-ol.

• 公益社団法人日本薬学会の論文
• 2004-04-01

著者

• ASAKAWA Yoshinori

  Faculty of Pharmaceutical Sciences, Tokushima Bunri University

• Asakawa Y

  Fac. Of Pharmaceutical Sciences Tokushima Bunri Univ.

• TOYOTA MASAO

  Faculty of Pharmaceutical Science, Tokushima Bunri University

• Braggins John

  Plant Systematics, School of Biological Sciences, University of Auckland

• Omatsu Ikuko

  Faculty of Pharmaceutical Sciences, Tokushima Bunri University

• Omatsu Ikuko

  Faculty Of Pharmaceutical Sciences Tokushima Bunri University

• Toyota M

  Tokushima Bunri Univ. Tokushima Jpn

• Toyota Masao

  Faculty Of Pharmaceutical Sciences Tokushima Bunri University

• Asakawa Y

  Tokushima Bunri Univ. Tokushima Jpn

• Asakawa Yoshinori

  Faculty Of Pharmaceutical Sciences Tokushima Bunri University

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