Citation: Shao Nong CHEN, Hong Jie ZHANG, Zhong Wen LIN, Yao Zu CHEN, Han Dong SUN. Three New diterpenoids from Isodon Gesneroides[J]. Chinese Chemical Letters, ;1997, 8(8): 705-706. shu

Three New diterpenoids from Isodon Gesneroides

a Department of Chemistry, Lanzhou University, Lanzhou, 730000;
b Laboratory of Phytochemistry, Kunming Institute of Botany, Academia Sinica, Kunming, 650204;
c Department of Chemistry, Zhejiang University, Hangzhou 310013

Received Date: 22 April 1997

Fund Project: The authors are grateful for financial support from the Laboratory of Phytochemistry, Kunming Institute of Botany, Academia Sinica, and State Education Commission Doctoral Foundation.

Three new diterpenoids,gesneroidins D-F (1-3),were isolated from Isodon gesneroides.The structure was determined as 3β,7β,11β,15β-tetraacetoxy-ent-kaur-16-en-6-one;15β-hydroxy-1 α,3β,6α,7β,11β-pentaacetoxy-ent-kaur-16-ene;6α,11β-dibydroxy-3β,7β-diacetoxy-ent-kaur-16-en-15-one based on 1D and 2D NMR techniques (COSY,NOESY,HXTCOR,COLOC).
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