Arylation of Cyclopropanol with Pyrrole: Asymmetric Synthesis of Indolizidine 167B, Indolizidine 209D, and Monomorine I
作者:Shuangwei Liu、Xiaojiao Su、Dan Jiang、Hongbing Xiong、Dingyin Miao、Lin Fu、Hanyue Qiu、Ling He、Min Zhang
DOI:10.1021/acs.orglett.3c00406
日期:2023.3.31
and thus allows rapid access to a diverse array of chiral 5,6,7,8-tetrahydroindolizines from easily available chiral amino acid esters. The synthetic utility has been demonstrated by the asymmetric synthesis of alklaoids (−)-indolizidine 167B, (+)-indolizidine 209D, (+)-monomorine I, and a natural product analogue.
已开发出Fe(NO 3 ) 3介导的环丙醇与富电子吡咯的开环芳基化反应,该反应可能通过环丙醇的氧化自由基开环,然后环化为吡咯基序,然后芳构化进行。该方法无需预官能化即可实现环丙醇的直接芳基化,因此可以从易于获得的手性氨基酸酯中快速获得各种手性 5,6,7,8-四氢二氢吲嗪。合成效用已通过生物碱 (−)-indolizidine 167B、(+)-indolizidine 209D、(+)-monomorine I 和天然产物类似物的不对称合成得到证明。