Total Synthesis of (+)-Nankakurines A and B and (±)-5-epi-Nankakurine A
…, J Read de Alaniz, JM Rohde, V Taupin
Index: Altman, Ryan A.; Nilsson, Bradley L.; Overman, Larry E.; Read De Alaniz, Javier; Rohde, Jason M.; Taupin, Veronique Journal of Organic Chemistry, 2010 , vol. 75, # 22 p. 7519 - 7534
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Citation Number: 32
Abstract
The first total syntheses of the Lycopodium alkaloids (+)-nankakurine A (2),(+)-nankakurine B (3), and the originally purported structure 1 of nankakurine A were accomplished. The syntheses of 2 and 3 feature a demanding intramolecular azomethine imine cycloaddition as the key step for generating the octahydro-3, 5-ethanoquinoline moiety and installing the correct relative configuration at the spiropiperidine ring juncture. The cyclization precursor ...
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