Reagent-controlled diastereoselective synthesis of (2S,3R)- and (2R,3R)-2,3-diaminobutanoic acid derivatives using proline-catalyzed α-hydrazination reaction
作者:Kazuishi Makino、Sayaka Kubota、Sousuke Hara、Masaru Sakaguchi、Akinari Hamajima、Yasumasa Hamada
DOI:10.1016/j.tet.2009.08.064
日期:2009.11
(2S,3R)- and (2R,3R)-2,3-Diaminobutanoic acid (Dab) derivatives were efficiently synthesized from Cbz-(R)-alanine using the proline-catalyzed diastereoselective α-hydrazination reaction and the SmI2-promoted reductive cleavage of the N–N bond as the key steps.
(2 S,3 R)-和(2 R,3 R)-2,3-二氨基丁酸(Dab)衍生物是由Cbz-(R)-丙氨酸经脯氨酸催化的非对映选择性α-酰化反应和SmI 2促进N–N键的还原裂解是关键步骤。