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New Triterpenoidal Alkaloids from the Leaves ofBuxus papillosa

 

作者: Atta-Ur-Rahman,   M.Iqbal Choudhary,   Samina Naz,   Athar Ata,   Shahnaz Perveen,   Masood Parvez,  

 

期刊: Natural Product Letters  （Taylor Available online 1998）
卷期: Volume 11, issue 2  

页码: 111-118

 

ISSN:1057-5634

 

年代: 1998

 

DOI:10.1080/10575639808041206

 

出版商: Taylor & Francis Group

 

关键词: Buxus papillosa;(+)-Na,Nb-dimethylbuxupapine;(+)-16α-hydroxypapillamidine

 

数据来源: Taylor

 

摘要:

Two new triterpenoidal alkaloids, (+)-Na,Nb-dimethylbuxupapine (1) (20S)-3β-dimethylamino-20-dimethylamino-9,10-seco-buxa-9(11),1(10)-dienel, and (+)-16a-hydroxypapillamidine (2) {(20S)-16α-hydroxy-3β-methyl-acetylamino-20-methylamino-9,10-seco-buxa-9(11),10(19)-diene} were isolated from the methanolic extract of the leaves ofBuxus papillosa.The structures of these compounds were elucidated with the help of extensive spectroscopic studies. The structure of compound1was further confirmed by single crystal X-ray diffraction technique.

 

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