中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1,3-Β-D-半乳二糖 | 3-O-β-D-Galactopyranosyl-D-galactose | 5188-48-7 | C12H22O11 | 342.3 |
beta-D-半乳糖五乙酸酯 | β-D-galactose peracetate | 4163-60-4 | C16H22O11 | 390.344 |
The configuration of glycosidic linkages in a number of reducing disaccharides has been determined by converting each compound to the corresponding 2-O-glycosyl-glycerol, the configuration of which was readily established. Compounds examined include 3-O-β-D-galactopyranosyl-D-galactose, 3-O-α-D-galactopyranosyl-L-arabinose, 3-O-β-D-arabopyranosyl-L-arabinose, 2-O-β-D-xylopyranosyl-L-arabinose, 3-O-α-D-xylopyranosyl-L-arabinose, and 4-O-β-D-xylopyranosyl-D-xylose, all of which were derived by partial hydrolysis of polysaccharides. 2-O-α-L-Arabopyranosyl-glycerol has been synthesized via the Koenigs-Knorr condensation.