Marine Natural Products. XV. : Chemical Constituents of an Okinawan Soft Coral of Xenia sp. (Xeniidae)

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概要

• 論文の詳細を見る

• Four new polyhydroxysterols, named xeniasterol-a (4), xeniasterol-b (5), xeniasterol-c (6), and xeniasterol-d (7), were isolated from an Okinawan soft coral of Xenia sp. (Xeniidae). On the basis of chemical and physicochemical evidence, the structures of xeniasterol-a, -b, -c, and -d have been elucidated respectively as 7-O-acetylergost-22E-ene-3β, 5α, 6β, 7β-tetraol (4), 7-O-acetylergosta-3β, 5α, 6β, 7β-tetraol (5), gorgosta-3β, 5α, 6β-triol (6), and 7-O-acetylgorgosta-3β, 5α, 6β, 7β-tetraol (7). Germacrene-c (1) was also isolated from the same soft coral together with two guaiane-type compounds (2,3), and it has been shown that germacrene-c (1) is readily air-oxidized to yield these cyclization products (2,3).

• 公益社団法人日本薬学会の論文
• 1986-11-25

著者

• 北川 勲

  Faculty of Pharmaceutical Sciences, Osaka University

• 小林 資正

  Faculty of Pharmaceutical Sciences, Osaka University

• 北川 勲

  Faculty Of Pharmaceutical Sciences Osaka University

• 崔 征

  Faculty of Pharmaceutical Sciences, Osaka University

• Kobayashi M

  Fujisawa Pharmaceutical Co. Ltd. :(peresent Address)fujisawa Research Insitute Of America Inc. North

• 清田 裕

  Faculty Of Pharmaceutical Sciences Osaka University

• Kobayashi M

  Faculty Of Pharmaceutical Sciences Osaka University

• 崔 征

  Faculty Of Pharmaceutical Sciences Osaka University

• 大西 真由美

  Faculty Of Pharmaceutical Sciences Osaka University

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