A new acetylenic compound from the rhizomes of Atractylodes chinensis and its absolute configuration |
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| Authors: | Nakai Yoichiro Sakakibara Iwao Hirakura Kazuhiro Terabayashi Susumu Takeda Shuichi |
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| Institution: | Pharmacognosy & Medicinal Resources Research Department, Central Research Laboratories, Tsumura & Co., Inashiki-gun, Ibaraki, Japan. nakai_youichirou@mail.tsumura.co.jp |
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| Abstract: | A new acetylenic compound "atractyloyne", (3S,4E,6E,12E)-1-isovaleryloxy-tetradeca-4,6,12-triene-8,10-diyne-3,14-diol (1) was isolated from the rhizomes of Atractylodes chinensis (Compositae) together with a known compound (4E,6E,12E)-3-isovaleryloxy-tetradeca-4,6,12-triene-8,10-diyne-1,14-diol (2). These structures were determined on the basis of the spectroscopic data and chemical evidence, and the absolute configuration of 1 was established by the modified 2-methoxy-2-trifluoromethylphenylacetic acid (MTPA) method. |
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