Total Synthesis of a Nonclassical Bioactive Acetogenin, (+)-Muconin
作者:Wen-Qian Yang、Takeshi Kitahara
DOI:10.1016/s0040-4020(00)00033-8
日期:2000.3
A convergent total synthesis of the tetrahydropyran-bearing acetogenin (+)-muconin 1 is described. All five chiral building blocks 7, 9, 17, 21, and 29 were prepared from d-glutamic acid, respectively. Four out of them were used to furnish the alkyne 16 and the iodoalkyne 33, respectively, and palladium(0)-mediated cross-coupling of alkynes 16 and 33, followed by hydrogenation, afforded 36. Simultaneous
描述了具有四氢吡喃的产乙酸原蛋白(+)-粘蛋白1的会聚全合成。所有五个手性构建块7,9,17,21,和29,从d谷氨酸分别制备。其中四个用于分别提供炔烃16和碘代炔烃33,以及钯(0)介导的炔烃16和33的交叉偶联,然后氢化,得到36。同时用BF 3 Et 2对36个MOM和TBS基团同时脱保护O在存在Me 2 S的情况下提供(+)-muconin 1。
Convergent synthesis of (+)-muconin
作者:Wen-Qian Yang、Takeshi Kitahara
DOI:10.1016/s0040-4039(99)01629-9
日期:1999.10
An efficient total synthesis of the tetrahydropyran-bearing acetogenin muconin 1 is described. Palladium(0)-mediated crossed diyne coupling and the use of only D-glutamic acid as the origin of all absolute stereochemistry highlight this flexible approach thar sets the stage for access to structural analogs for further study. (C) 1999 Elsevier Science Ltd. All rights reserved.