作者:Mathéo Berthet、Baptiste Legrand、Jean Martinez、Isabelle Parrot
DOI:10.1021/acs.orglett.6b03656
日期:2017.2.3
A stereoconservative three-step synthesis to access to 1,2,4-oxadiazine-3,6-dione is presented. This underexplored platform could be considered as a constrained oxy-azapeptide or an aza-diketomorpholine, the methodology being then successfully applied to produce enantiopure aza-analogs of diketomorpholine natural products. Importantly, the first crystal structures were obtained and compared to diketomorpholine
提出了一种立体保守的三步合成法,以合成1,2,4-恶二嗪-3,6-二酮。该未充分开发的平台可以被认为是受约束的氧-氮杂肽或氮杂-二酮吗啉,该方法随后成功地用于生产对映纯的二酮吗啉天然产物的氮杂类似物。重要的是,获得了第一晶体结构并将其与二酮吗啉和二酮哌嗪结构进行比较。最后,描述了有关该杂环支架与各种氨基酸的偶联以提供原始假二肽类似物的简单方法。