4.5 Article

Synthesis and biological activity of novel thiazolidin-4-ones with a carbohydrate moiety

Journal

CARBOHYDRATE RESEARCH
Volume 343, Issue 18, Pages 3015-3020

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.carres.2008.09.004

Keywords

Thiazolidin-4-one; Carbohydrate; X-ray; Antitumor; Glycosidase inhibition

Funding

  1. National Natural Science Foundation of China (NSFC) [20472015, 20672027]
  2. Natural Science Foundation of Hebei [2005000106, 2008000588]
  3. Research Foundation from the Ministry of Education of China [206013]
  4. Postdoctoral Foundation of China

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Some novel 2-aryl-3-[5-deoxy-1,2-O-isopropylidene-alpha-D-Xylofuranose-5-C-yl] thiazolidin-4-ones were synthesized by the three-component condensation of an amino sugar 1, an aromatic alclehyde 2, and mercaptoacetic acid 3 in the presence of DCC and DMAP at room temperature. Two diastereoisomers 4 and 5 were afforded as the main products in totally isolated yields of 25.4-70%. The reaction was carried out with almost no observed stereoselectivity except in the case of 2c, which showed a moderate stereoselectivity. The structures of the new compounds were determined by NMR spectroscopy and mass spectrometry (MS), and the configuration of the newly generated chiral carbon (C-2) in the thiazolidin-4-one ring was tentatively assigned based on the X-ray crystallographic structure of 5d and the comparison of their corresponding NMR signals. The antitumor (human cervical cancer cells) activity and the inhibition against the glycosidases (alpha-glucosidase, beta-glucosidase, (alpha-amylase) have been evaluated for the new compounds, some of which exhibited antitumor activity. (C) 2008 Elsevier Ltd. All rights reserved.

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