中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | methyl 3,4:5,6-di-O-isopropylidene-D-gluconate | 114743-85-0 | C13H22O7 | 290.313 |
葡萄糖酸内酯 | D-Glucono-1,5-lactone | 90-80-2 | C6H10O6 | 178.142 |
D-葡萄糖 | D-glu | 2280-44-6 | C6H12O6 | 180.158 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | methyl (2R,3S,4R,5R)-2,3,4,5-tetrahydroxyoxane-2-carboxylate | 73960-78-8 | C7H12O7 | 208.168 |
—— | methyl 2,3,4,5-tetra-O-acetyl-β-D-arabino-hex-2-ulopyranosonate | 225793-99-7 | C15H20O11 | 376.317 |
2-Oxo-D-gluconic acid obtained by fermentation of D-glucose was used as starting material for syntheses of amino acids. We trapped the carbohydrate in its furanoid configuration and synthesized an α- and an ω-amino acid. After deprotection of the hydroxyl groups the latter did not isomerize to the substituted piperidine (aza-sugar) as expected, but remained in the furanose form. The starting structure 2 was proven by crystal structure analysis. The conformational identification of the other substances was done by NMR measurements following known rules for furanoses.