Abietane Diterpenoids from the Barks of Cryptomeria japonica

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概要

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• From the bark of Cryptomeria japonica were isolated sugikurojins I (1) and J (2), and an abietane derivative (3) was obtained for the first time as a natural product. These structures were elucidated primarily through extensive NMR experiments. Sugikurojin I (1) has a unique skeleton incorporating an abietane diterpene and a 1, 10-secocadinane sesquiterpene. Sugikurojin J (2) is a peroxyester of hydroxyabietane diterpene and isopi-marane acid diterpene. Compound 3 was p-quinone acid, which occurred by cleavage between C-7 and C-8 of sugiol; it was deduced to [4'-isopropyl-1(S), 3, 3-trimethyl-3', 6'-dioxo-bicyclohexyl-1', 4'-dien-2(R)-yl]-acetic acid. Also obtained in this investigation were three known diterpenes (4-6).

• 2006-04-01

著者

• YOSHIKAWA Kazuko

  Faculty of Pharmaceutical Sciences, Tokushima Bunri University

• ARIHARA Shigenobu

  Faculty of Pharmaceutical Sciences, Tokushima Bunri University

• UMEYAMA Akemi

  Faculty of Pharmaceutical Sciences, Tokushima Bunri University

• Arihara S

  Faculty Of Pharmaceutical Sciences Tokushima Bunri University

• SUZUKI Kentaro

  Faculty of Pharmaceutical Sciences, Tokushima Bunri University

• Arihara Shigenobu

  Faculty Of Pharmaceutical Sciences Tokushima Bunri University

• Yoshikawa K

  Faculty Of Pharmaceutical Sciences Tokushima Bunri University

• Yoshikawa Kazuko

  Faculty Of Pharmaceutical Sciences Tokushima Bunri University

• Umeyama A

  Faculty Of Pharmaceutical Sciences Tokushima Bunri University

• Umeyama Akemi

  Faculty Of Pharmaceutical Sciences Tokushima Bunri University

• Suzuki Kentaro

  Faculty Of Pharmaceutical Sciences Tokushima Bunri University

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