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Sulfonamide chalcone as a new class of alpha-glucosidase inhibitors
Woo Duck Seo1, Jin Hyo Kim, Jae Eun Kang
1Division of Applied Life Science (BK21 Program), Department of Agricultural Chemistry, Institute of Agriculture & Life Sciences, Gyeongsang National University, Jinju 660-701, Republic of Korea.
Abstract:
Chalcones 1-20, a new class of glycosidase inhibitors, were synthesized, and their glycosidase inhibitory activities were investigated. Non-aminochalcones 1-12 had no inhibitory activity, however, aminochalcones 13-20 had strong glycosidase (alpha-glucosidase, alpha-amylase, and beta-amylase) inhibitory activities. In particular, sulfonamide chalcones 17-20 had more potent alpha-glucosidase inhibitory activity than aminated chalcone 13-16. 4'-(p-Toluenesulfonamide)-3,4-dihydroxy chalcone 20 (IC(50)=0.4microM) was the best inhibitor against alpha-glucosidase, and these sulfonamide chalcones showed non-competitive inhibition.
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