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Triterpenes from the Outer Bark ofBetula nigra

 

作者: Yun Hua,   MichaelD. Bentley,   BarbaraJ. W. Cole,   KathleenD. Murray,   A.Randall Alford,  

 

期刊: Journal of Wood Chemistry and Technology  （Taylor Available online 1991）
卷期: Volume 11, issue 4  

页码: 503-516

 

ISSN:0277-3813

 

年代: 1991

 

DOI:10.1080/02773819108051090

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Twelve pentacyclic triterpenes were isolated from the outer bark of river birch,Betula nigra.3β-Acetoxyolean-11-oxo-12-ene-28-oic acid was isolated for the first time from aBetulaspecies. 3β-Caffeatoxyolean-12-ene-28-oic acid has been spectrally characterized for the first time. 3β-Acetoxyolean-12-ene-28-oic acid and 3β-acetoxyolean-11-oxo-12-ene-28-oic acid have been demonstrated to be active as antifeedants for the Colorado potato beetle,Leptinotarsa decemlineata.

 

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