Stereoselective Synthesis of 4,5-Dihydroxy-D-erythro- and 4,5-Dihydroxy-D-threo-L-norvaline from D-Ribonolactone
作者:Jesús Ariza、Miguel Díaz、Josep Font、Rosa M. Ortuño
DOI:10.1016/s0040-4020(01)85821-x
日期:1993.2
Nitrogen functions have been introduced stereoselectively at the C-2 position in D-ribonolactone derivatives in order to prepare the title unnatural amino acids. The synthetic strategies lie in the inversion of configuration in SN2-type substitution reactions and stereospecific hydrogenation of conveniently substituted butenolides. The -isomer is the key precursor in the synthesis of the antibiotic
为了制备标题非天然氨基酸,已经在D-核糖内酯衍生物的C-2位立体选择性地引入了氮功能。合成策略在于S N 2型取代反应中构型的反转和便利取代的丁烯内酯的立体定向氢化。的异构体是在抗生素clavalanine的合成中的关键前体。