Synthesis of sulfonylurea derivatives and their α-glucosidase inhibitory activity


  • Thi Thoi Bui* Vietnam Institute of Industrial Chemistry
  • Dai Quang Ngo Vietnam National Chemical Group
  • Van Loc Tran Institute of Chemistry, VAST


6-chloronicotinic acid, sulfonyl carbamate, sulfonylurea derivatives


The paper describes the preparation of new sulfonylurea derivatives from sulfonyl carbamate 6 with amino derivatives. The process for synthesis of the key compound 6 included three steps starting from compound 6-chloronicotinic acid 1, which are readily available chemicals. The compound 1 in the presence of triethylamine in anhydrous acetone solvent and ethyl chloroformate to obtain 6-chloronicotinic (ethyl carbonic) anhydride compound 3. The compound 3 were subsequently reacted with compound 4 to obtain compounds 5. The sulfonamides 5 was refluxed with ethyl chloroformate in present anhydrous potassium carbonate in dry acetone to obtain the key compounds 6. The total yield of the key intermediate compound 6 is about 81.35%, related to the starting materials. Finally, three sulfonylurea derivatives 7a-c were synthesized by condensation of 6 with various of amines in toluene. Their structures have been determined by IR, MS and 1H and 13C NMR spectroscopic methods, and their α-glucosidase inhibitory activity have been evaluated.


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Received 16 September 2019; accepted 12 December 2019

How to Cite

Thi Thoi Bui, Dai Quang Ngo, & Van Loc Tran. (2022). Synthesis of sulfonylurea derivatives and their α-glucosidase inhibitory activity. Vietnam Journal of Science, Technology and Engineering, 62(2), 34-37.



Physical Sciences