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[ÇóÖú] Synthesis and a-glucosidase inhibitory activity ofchrysin, diosmetin,

Abstract


Several derivatives have been synthesized from chrysin, diosmetin, apigenin, and luteolin, which were isolated from diverse natural plants. The ¦Á-glucosidase inhibitory activity of these compounds was evaluated. The glucosidase inhibitory activity of all derivatives (IC50 < 24.396 ¦Ìmol/L) was higher compared with that of the reference drug, acarbose (IC50 = 563.601 ¡À 40.492 ¦Ìmol/L), and 1-deoxynojirimycin (IC50 = 226.912 ¡À 12.573 ¦Ìmol/L). O3¡ä,O7-Hexyl diosmetin (IC50 = 2.406 ¡À 0.101 ¦Ìmol/L) was the most potent inhibitor identified. These compounds showed a higher inhibitory ability compared with their precursors except the luteolin derivatives. In general, the inhibitory activity of the synthetic derivatives was enhanced with long alkyl chains at positions 3¡ä, 4¡ä and 7 of the flavonoid.


Graphical abstract


Twelve novel ¦Á-glucosidase inhibitors were synthesized and all derivatives showed remarkable inhibitory activity against ¦Á-glucosidase with potency better than that of acarbose and 1-deoxynojirimycin
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