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Diterpenoids from the Roots of Agastache rugosa

Zhong-Mei Zou, De-Quan Yu, Pu-Zhu Cong   

  1. 1. Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050; 
    2. Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094
  • Received:1996-12-12 Revised:1997-04-08 Online:1997-09-15 Published:1997-09-15

Abstract: Agastol (2), a new diterpene, was isolated from the roots of Agastache rugosa together with its isomer, named isoagastol (3). Their structures were established on the basis of spectral methods The structures of agastol (2) and isoagastol (3) was elucidated as 11,14-dihydroxy-12-methoxy-19(4→3) abeo-abieta-4(18),8,11,13-tetraen-7-one and 11,14-dihydroxy-12-methoxy-19(4→3) abeo-abieta-3,8,11,13-tetraen-7-one. Isoagastol was isolated for the first time from natural sources.

Key words: Agastache rugosa, Labiatae, Diterpenoids, Agastol, Isoagastol

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