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New Cadinane‐Type Sesquiterpenes from the Roots of Taiwania cryptomerioides Hayata
Authors:Chiou‐Fung Chyu  Mei‐Ru Ke  Yuan‐Shiun Chang  Shih‐Chang Chien  Yueh‐Hsiung Kuo
Affiliation:1. Department of Chemistry, National Taiwan University, Taipei 106, Taiwan, (phone:+886‐233661671;2. fax: +886‐2‐23636359);3. College of Pharmacy, China Medical University, Taichung, 404, Taiwan;4. Research Center of Food and Biomolecules, National Taiwan University, Taipei 106, Taiwan;5. Agriculture Biotechnology Research Center, Academia Sinica, Taipei, 115, Taiwan
Abstract:Six new cadinane‐type sesquiterpenes, (1β,4β,5α,10α)‐1,4‐epoxymuurolan‐5‐ol ( 1 ), (4α,10β)‐4,10‐dihydroxycadin‐1(6)‐en‐5‐one ( 2 ), (2β,3α,4β,6β)‐2,3‐dihydroxycadin‐1(10)‐en‐5‐one ( 3 ), (2β,3α)‐α‐corocalene‐2,3‐diol ( 4 ), (7S)‐α‐calacoren‐14‐ol ( 5 ), and (8β,9β,10β)‐8,9‐epoxycalamenene‐3,10‐diol ( 6 ) together with one known compound, (8β,9β,10β)‐8,9‐epoxycalamenen‐10‐ol ( 7 ), were isolated from the roots of Taiwania cryptomerioides. The structures of the new constituents were essentially elucidated by spectral evidence.
Keywords:Cadinane  Taiwania cryptomerioides  Sesquiterpenes
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