Studies on the Diterpene Constituent of the Root of Agastache rugosa O. Kuntze

배초향지하부(排草香地下部)의 Diterpene 성분(成分)에 관(關)한 연구(硏究)

A new diterpene, mp $178{\sim}180^{\circ}$, $C_{21}H_{28}O_5$, was isolated from the root of Agastache rugosa O. Kuntze in the family of Labiatae. The structure of this compound was postulated as $19(4{\rightarrow}3)-abeo-12,14,15-trihydroxy-11-methoxy-abiet-4(18)$, 8,11,13-tetraen-7-one by spectroscopic methods.