Citation: Ai Jun HOU, Hui YANG, Bei JIANG, Qin Shi ZHAO, Yan Ze LIU, Zhong Wen LIN, Han Dong SUN. Two New ent-Kaurane Diterpenoids from Isodon xerophilus[J]. Chinese Chemical Letters, ;2000, 11(9): 795-798. shu

Two New ent-Kaurane Diterpenoids from Isodon xerophilus

a Laboratory of Phytochemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204;
b Department of Phytochemistry, Henan College of Traditional Chinese Medicine, Zhengzhou 450003

Received Date: 7 March 2000

Two new ent-kaurane diterpenoids, xerophilusin E (1) and xerophilusin F (2), were isolated from the leaves of Isodon xerophilus.Their structures were determined as 3, 20:7, 20 diepoxy-ent-kaur-16-en-15-one and 7β, 14β, 20 (R)-trihydroxy-11β-acetoxy-7, 20-cyclo-ent-kaur-16-en-6, 15-dione, respectively, by spectral methods and X-ray crystallographic analysis.
- Isodon xerophilus,
- Labiatae,
- ent-kaurane diterpenoids,
- xerophilusin E,
- xerophilusin F
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