Rubrenolide, total synthesis and revision of its reported stereochemical structure
作者:L Thijs、B Zwanenburg
DOI:10.1016/j.tet.2004.04.037
日期:2004.6
In this paper the synthesis of the natural product rubrenolide is presented. Due to an error in the original proposed stereochemical structure of rubrenolide, the synthesis was not straightforward. Application of the photo-induced rearrangement of an appropriate epoxy diazomethyl ketone gave access to the precursor lactone with an ee of 91%. Coupling of this lactone with (4S)-2,2-dimethyl-[1,3]-di
本文介绍了天然产物红景天内酯的合成。由于最初提出的红荧烯内酯的立体化学结构存在错误,因此合成并不简单。适当的环氧重氮甲基酮的光诱导重排的应用使得获得的前体内酯的ee为91%。该内酯与(4 S)-2,2-二甲基-[1,3]-二氧戊环-4-甲醛的偶合,在一些额外的步骤后,得到的最终产物与天然产物的真实样品相同。