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Orthosiphol A, a highly oxygenated diterpene from the leaves of orthosiphon stamineus

✍ Scribed by Toshiya Masuda; Kazuyo Masuda; Nobuji Nakatani

Publisher: Elsevier Science
Year: 1992
Tongue: French
Weight: 149 KB
Volume: 33
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)91583-1

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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