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Tandem Acylation - Cycloalkylation with Cyclohexene-1-Acetic Acid: A New Entry to Phenanthrene Alkaloids

 

作者: M.M. V. Ramana,   PrashantV. Potnis,  

 

期刊: Natural Product Letters  （Taylor Available online 1996）
卷期: Volume 8, issue 4  

页码: 317-324

 

ISSN:1057-5634

 

年代: 1996

 

DOI:10.1080/10575639608044915

 

出版商: Taylor & Francis Group

 

关键词: N- noratherosperminine and atherosperminine

 

数据来源: Taylor

 

摘要:

Tandem acylation - cycloalkylation of 3,4 - dimethoxy-phenylethylamine (1) with cyclohexene -1-acetic acid (2) in polyphosphoric acid (PPA) afforded 8 - (2 - aminoethyl) - 1,2,3,4,4a,9,10,10a - octahydro - 9 - oxo - phenanthrene (3) which on dehydrogenation with Pd - C, followed by sequentialN- methylation gaveN- noratherosperminine (5) and atherosperminine (6) in good yields.

 

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