Stereocontrolled Synthesis of Key Advanced Intermediates toward Simplified Acetogenin Analogues
作者:Yvan Le Huérou、Julien Doyon、René L. Grée
DOI:10.1021/jo990772h
日期:1999.9.1
The stereo- and enantiocontrolled synthesis of substituted beta-hydroxy ethers based on glycol and catechol bearing an alkyne group and a series of substituents is reported. These substrates were designed to mimic the bis-THF array of annonaceous acetogenins and to provide an access to simplified and modified analogues. The key steps of the synthesis involve the condensation of the nonracemic mesylate
据报道,基于带有炔基和一系列取代基的乙二醇和邻苯二酚的立体和对映体控制的取代β-羟基醚的合成。这些底物被设计为模拟非乙酰丙酮原蛋白的双-THF阵列,并提供了简化和修饰类似物的途径。合成的关键步骤包括使Solketal的非外消旋甲磺酸酯与乙二醇和邻苯二酚缩合,然后与缩水甘油基衍生物进行烷基化。在适当的条件下,反应是完全立体选择性的,并允许合成所有非对映异构体。用三乙基甲硅烷基乙炔将环氧化物打开后,将第二种环氧化物脱保护并与一系列烷基,芳基,胺和醇试剂反应。