An Aza-Wittig/π-Furan cyclization approach toward the homoerythrina alkaloid (±)-selaginoidine

被引:29
作者
Cassidy, MP [1 ]
Özdemir, AD [1 ]
Padwa, A [1 ]
机构
[1] Emory Univ, Dept Chem, Atlanta, GA 30322 USA
关键词
D O I
10.1021/ol0501323
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A one-pot procedure was developed to efficiently prepare hexahydroindolinones containing a tethered furan ring. Reaction of a furanyl azide with Bu3P delivered the iminophosphorane, which was allowed to react with 1-methyl-(2-oxocyclohexyl)acetic acid to give the desired hexahydroindolinone ring system. Further treatment with trifluoroacetic acid afforded the tetracyclic lactam skeleton found in the alkaloid (+/-)-selaginoidine.
引用
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页码:1339 / 1342
页数:4
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