作者:Hackbarth, Jacob N.、Friestad, Gregory K.
DOI:10.1021/acs.orglett.4c01310
日期:——
1,5-Polyol structures present challenges in stereocontrol, configurational assignment, and diastereomer separation; these are all compromised by remote stereochemical relationships. A configuration-encoded approach with alcohol configurations previously established within enantiopure building blocks offers a versatile solution to these issues. The iterative construction begins with α-silyloxyaldehydes;
1,5-多元醇结构在立体控制、构型分配和非对映异构体分离方面提出了挑战;这些都受到远程立体化学关系的影响。先前在对映体纯构建模块中建立的醇配置的配置编码方法为这些问题提供了通用的解决方案。迭代构建从α-甲硅烷氧基醛开始;在这里,我们介绍了一种通过甲硅烷基阳离子诱导烯醇酯环氧化物开环从炔烃到α-甲硅烷基氧基醛的对映选择性且步骤经济的路线。这一进展使得巴斯蒂莫内酯 C22-C41 片段的配置编码高效合成成为可能。