作者:Kieran P. Stockton、Ben W. Greatrex
DOI:10.1039/c6ob00933f
日期:——
The biorenewable chiral synthon (−)-levoglucosenone has been converted to enantiopure cyclopropyl esters using the base-promoted carbocyclisation of 4,5-epoxyvalerates. This protocol was applied to the enantiospecific synthesis of the GABAc receptor agonist (1R,2R)-trans-2-aminomethylcyclopropanecarboxylic acid ((−)-TAMP) and its enantiomer. The process was also extended to generate 1,1,2- and 1,2
使用碱促进的4,5-环氧戊酸酯的碳环化反应,可生物再生的手性合成子(-)-左旋葡糖醛酮已转化为对映体纯的环丙基酯。该方案适用于GABA c受体激动剂(1 R,2 R)-反-2-氨基甲基环丙烷甲酸((-)-TAMP)及其对映异构体的对映体特异性合成。该过程也扩展到生成1,1,2-和1,2,3-三取代的环丙烷,从而导致选择性谷氨酸受体拮抗剂PCCG-4的正式合成。