中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 4,6-O-benzylidene-1,5:2,3-dianhydro-D-mannitol | 164105-30-0 | C13H14O4 | 234.252 |
1,5:2,3-二脱水-4,6-O-[(R)-苯基亚甲基]-D-蒜糖醇 | 1,5:2,3-dianhydro-4,6-O-benzylidene-D-allitol | 92283-88-0 | C13H14O4 | 234.252 |
—— | [(2R,4aR,7S,8R,8aS)-8-hydroxy-2-phenyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-7-yl] 2,2-dimethylpropanoate | 1117903-39-5 | C18H24O6 | 336.385 |
—— | C-(2,3,4-tri-O-benzyl-β-D-xylopyranosyl)-methanol | 13121-49-8 | C27H30O5 | 434.532 |
—— | 1,5-anhydro-4,6-O-benzylidene-2-O-methanesulfonyl-D-glucitol | 66884-54-6 | C14H18O7S | 330.359 |
—— | 1,5-Anhydro-4,6-O-benzylidene-2-O-(tert-butyldimethylsilyl)-D-glucitol | 89872-96-8 | C19H30O5Si | 366.53 |
—— | 1,5-Anhydro-4,6-O-benzylidene-3-O-(tert-butyldimethylsilyl)-D-glucitol | 89872-97-9 | C19H30O5Si | 366.53 |
—— | 1,5-anhydro-2-azido-2-deoxy-4,6-O-benzylidene-D-mannitol | 212695-05-1 | C13H15N3O4 | 277.28 |
—— | 1,5-anhydro-2-azido-3-O-benzyl-4,6-O-benzylidene-2-deoxy-D-mannitol | 212700-49-7 | C20H21N3O4 | 367.404 |
—— | 1,5-anhydro-2,3-di-O-benzyl-4,6-di-O-(methylsulfonyl)-D-glucitol | 869194-05-8 | C22H28O9S2 | 500.591 |
—— | 4-O-galloyl-1,5-anhydro-D-glucitol | 1355573-80-6 | C13H16O9 | 316.265 |
—— | 2,3-di-O-galloyl-1,5-anhydro-D-glucitol | 1355573-83-9 | C20H20O13 | 468.371 |
—— | 3-O-galloyl-1,5-anhydro-D-glucitol | 1355573-75-9 | C13H16O9 | 316.265 |
Twenty-one natural and unnatural phenolic compounds containing a carbohydrate moiety were synthesized and their structure–activity relationship (SAR) was evaluated for α-glucosidase inhibition and antioxidative activity. Varying the position of the galloyl unit on the 1,5-anhydro-d-glucitol (1,5-AG) core resulted in changes in the α-glucosidase inhibitory activity and notably, particularly strong activity was demonstrated when the galloyl unit was present at the C-2 position. Furthermore, increasing the number of the galloyl units significantly affected the α-glucosidase inhibition, and 2,3,4,6-tetra-galloyl-1,5-AG (54) and 2,3,4,6-tetra-galloyl-d-glucopyranose (61) exhibited excellent activities, which were more than 13-fold higher than the α-glucosidase inhibitory activity of acertannin (37). Moreover, a comparative structure-activity study suggested that a hemiacetal hydroxyl functionality in the carbohydrate core and a biaryl bond of the 4,6-O-hexahydroxydiphenoyl (HHDP) group, which are components of ellagitannins including tellimagrandin I, are not necessary for the α-glucosidase inhibitory activity. Lastly, the antioxidant activity increased proportionally with the number of galloyl units.