Synthesis of Ophiocerins A, B and C, Botryolide E, Decarestrictine O, Stagonolide C and 9-<i>epi</i>-Stagonolide C Employing Chiral Hexane-1,2,3,5-tetraol Derivatives as Building Blocks
作者:Krishanu Show、Pradeep Kumar
DOI:10.1002/ejoc.201600625
日期:2016.9
organocatalytic approach to the synthesis of (2R,3S)-hexane-1,2,3,5-tetraol (11) derivatives (in the forms of different stereoisomers and bearing different protecting groups) has been developed. The key chiral intermediates 11 were prepared with complete stereocontrol through the proline-catalyzed intermolecular aldol reaction between acetone and d-glyceraldehyde acetonide. The synthetic utility of the
已开发出一种合成 (2R,3S)-己烷-1,2,3,5-四醇 (11) 衍生物(以不同立体异构体形式并带有不同保护基团)的有机催化方法。关键的手性中间体11是通过丙酮和d-甘油醛缩醛之间的脯氨酸催化的分子间醛醇反应在完全立体控制下制备的。通过标准合成方案将中间体转化为标题羟基化吡喃和各种不饱和内酯,证明了中间体的合成效用。