77174-08-4Relevant articles and documents
Synthesis of 1-deoxynojirimycin: Exploration of optimised conditions for reductive amidation and separation of epimers
Iftikhar, Mehwish,Wang, Lin,Fang, Zhijie
, p. 460 - 464 (2017/08/18)
1-Deoxynojirimycin (DNJ), which has importance with respect to sugar processing enzymes, is a synthetic target for chemists. A key step in the synthesis of DNJ is the preparation of 2,3,4,6-tetra-O-benzyl-D-glucono-δ-lactam. By varying reaction parameters such as temperature, solvent and reducing reagent, improvements on previous methods are described. A novel approach for the synthesis of 2,3,4,6-tetra-O-benzyl-5-dehydro-5-deoxo-D-gluconamide has been developed by using PCC as an oxidising agent. Separation of epimers permitted DNJ to be obtained in 85% yield after reduction and hydrogenolysis steps.
Sugar-derived cyclic imines: One-pot synthesis and direct functionalization
Szcze?niak, Piotr,Stecko, Sebastian,Staszewska-Krajewska, Olga,Furman, Bart?omiej
, p. 1880 - 1888 (2014/03/21)
A simple method for the synthesis of sugar-derived imines by a Schwartz's reagent reduction of easily available sugar lactams has been described. A direct addition of nucleophiles to the generated in situ cyclic imines and subsequent deprotection of hydroxyl function allows to convert sugar lactams in polyhydroxylated pyrrolidines and piperidines.
Synthesis of glycosylamines and glyconamides using molecular iodine
Fusaro, Maxime B.,Chagnault, Vincent,Postel, Denis
, p. 542 - 550 (2013/07/27)
We describe herein the synthesis of glyconamides and glycosylamines usingmolecular iodine on benzylated carbohydrates. During the improvement and the optimization of the direct oxidative amidation reaction,we also discovered the possibility to form glycosylamines with excellent yields and short reaction times in comparison with the previously reported procedures. Advantages of these methods are the operational simplicity, elimination of use of complicated reagents and procedures, and generality of the reactions. Our methodology is an excellent access to precursors of N-alkyliminosugars and imino-C-glycosides.