New chiral ligands from isosorbide: application in asymmetric transfer hydrogenation
作者:Stéphane Guillarme、Thi Xuan Mai Nguyen、Christine Saluzzo
DOI:10.1016/j.tetasy.2008.05.033
日期:2008.6
Newchiral β-amino alcohols have been designed and synthesized from isosorbide, a by-product from the starch industry. These newligands have been synthesized in three steps from isosorbide in good yields and have been used in asymmetrictransferhydrogenation reaction with RuII complexes. One of these catalysts also demonstrated good catalytic activity and good enantioselectivity.
6-Anhydro-1-(aryl or alkylamino)-1-deoxy-d-sorbitol derivatives have been prepared in four steps from isosorbide, a by-product from the starch industry. The inhibitoryactivities of these new compounds have been evaluated towards 13 glycosidases. A first lead-compound was identified, which inhibited β-N-acetylglucosaminidase from bovine kidney (82% inhibition at 1 mM).