Studies on Structure of Ecdysterones from Rhaponticum Uniflorum

Chem. J. Chinese Universities ›› 2002, Vol. 23 ›› Issue (11): 2084.

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Studies on Structure of Ecdysterones from Rhaponticum Uniflorum

CHENG Jie-Kai¹, ZHANG Yong-Hong¹, ZHANG Zi-Yi¹, CHENG Dong-Liang¹, ZHANG Guo-Lin²

1. Department of Chemistry, National Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China;
2. Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China

Received:2001-09-17 Online:2002-11-24 Published:2002-11-24

Abstract

Abstract: Seven phytoecdysteroids were isolated from the root of Rhaponticum uniflorum. Their structures, by means of spectroscopic techniques and chemical properties, were identified as ajugasterone C-2,3;20,22-diacetonide(1); 25-deoxy-9(11)-dehydro-20-hydroxyecdysone-20,22-amonocetonide(2); ajugasterone C-20,22-monoacetonide (3); ajugasterone C (4); rhapontisterone C (5); ecdysterone(6); 11α-hydroxyecdysterone ecdysterone(7). Compounds 1 and 2 were new compounds. Compound 3 was obtained from Rhaponticum uniflorum for the first time.

Key words: Rhaponticum uniflorum, Compositae, Rhaponticum, Ecdysterone, 2D NMR

CLC Number:

O629.61

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CHENG Jie-Kai, ZHANG Yong-Hong, ZHANG Zi-Yi, CHENG Dong-Liang, ZHANG Guo-Lin . Studies on Structure of Ecdysterones from Rhaponticum Uniflorum[J]. Chem. J. Chinese Universities, 2002, 23(11): 2084.

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Studies on Structure of Ecdysterones from Rhaponticum Uniflorum

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