The Synthesis of Diastereo- and Enantiomerically Pure <i>β</i>-Aminocyclopropanecarboxylic Acids
作者:Raphael Beumer、Christian Bubert、Chiara Cabrele、Oliver Vielhauer、Markus Pietzsch、Oliver Reiser
DOI:10.1021/jo005541l
日期:2000.12.1
The synthesis of diastereo- and enantiomerically pure beta-aminocyclopropanecarboxylic acids (beta-ACCs) is described. Starting from pyrrole, (rac)-4 is readily obtained, which was kinetically resolved by enzymatic hydrolysis. Subsequent oxidation of (-)-4 and deformylation gives rise to the cis-beta-ACC derivative (ent)-9, while (+)-10 was converted to the trans-beta-ACC derivative 8. Both 8 and (ent)-9
描述了非对映体和对映体纯的β-氨基环丙烷羧酸(β-ACC)的合成。从吡咯开始,容易获得(rac)-4,其通过酶促水解而动力学拆分。随后的(-)-4氧化和去甲酰基化反应生成顺式β-ACC衍生物(ent)-9,而(+)-10被转化为反式β-ACC衍生物8。8和(ent)构象受限的β-丙氨酸或γ-氨基丁酸(GABA)衍生物-9及其苄酯13和16代表了含有非天然氨基酸的肽的有用组成部分。