Orthosiphol A and B, novel diterpenoid i
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Toshiya Masuda; Kazuyo Masuda; Shizuno Shiragami; Akiko Jitoe; Nobuji Nakatani
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Article
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1992
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Elsevier Science
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French
โ 432 KB
Abshzct: Two novel highly oxygenated pimarane diterpenes, orthosiphol A (1) and B (2). have been isolated from the dry leaves of Orthosiphon .mmimws Benth (Labiatae). Their structures were elucidated by spectroscopic and chemical methods. Orthosiphol A and B showed potent inhibitory activity against