IMDA/Retro-Mannich Approach to <i>cis</i>-Perhydroquinoline <i>Lycopodium</i> Alkaloids: Asymmetric Synthesis of (+)-Luciduline
作者:Daniel L. Comins、Clinton A. Brooks、Rima S. Al-awar、R. Richard Goehring
DOI:10.1021/ol990028j
日期:1999.7.1
[formula: see text] The first chiral auxiliary mediated asymmetric synthesis of the naturally occurring Lycopodium alkaloid (+)-luciduline has been accomplished. Key steps include an IMDA reaction of a chiral dihydropyridine, a subsequent retro-Mannich ring opening, and a novel cationic reductive cyclization reaction.
[公式:见正文]已经完成了自然存在的石蒜生物碱(+)-透明核素的第一个手性辅助介导的不对称合成。关键步骤包括手性二氢吡啶的IMDA反应,随后的逆曼尼希开环反应和新型阳离子还原环化反应。