Discovery of novel aminosaccharide-based sulfonamide derivatives as potential carbonic anhydrase II inhibitors.

Abstract

In this paper, a new class of novel sulfonamides incorporating aminosaccharide tails were designed and synthesized based on the sugar-tail approach. Then, all the novel compounds were evaluated for their inhibitory activities against three carbonic anhydrase (CA, EC 4.2.1.1) isoenzymes (hCA I, hCA II and hCA IX). Interestingly, effective inhibition of these three CA isoforms were observed, especially the glaucoma associated isoform hCA II. It is worth noting that these glycoconjugated sulfonamide derivatives also showed better CA inhibitory effects compared to the initial segment carzenide. Among them, compound 8d was the most effective inhibitor with IC50 of 60 nM against hCA II. Subsequent physicochemical properties studies showed that all compounds have good water solubility and neutral pH values in solutions. And these important physicochemical properties make target compounds acquire obvious advantages in the preparation of topical and nonirritating antiglaucoma drugs. Moreover, the target compounds showed lower corneal cytotoxicity than acetazolamide (AAZ) and good metabolic stability in vitro. In addition, molecular docking studies confirmed the interactions between aminosaccharide fragment and hydrophilic subpocket of hCA II active site were crucial for the enhanced CA inhibitory activity. Taken together, these results suggested 8d would be a promising lead compound for the development of topical antiglaucoma CAIs.

• Authors: Xin Wang, Yan-Lian Feng, Xiao-Yu Zhao, Ran An, Chun Cao, Meng-Bi Guo, Rui Zhang, Yuan-Xin Wang, Zhuang Hou, Chun Guo
• Journal: Bioorganic & medicinal chemistry letters (Bioorg Med Chem Lett) Vol. 53 Pg. 128420 (12 01 2021) ISSN: 1464-3405 [Electronic] England
• PMID: 34728369 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2021 Elsevier Ltd. All rights reserved.

Chemical References

• Amines
• Carbohydrates
• Carbonic Anhydrase Inhibitors
• Isoenzymes
• Sulfonamides
• Carbonic Anhydrase II

Topics

• Amines (chemistry, pharmacology)
• Animals
• Carbohydrates (chemistry, pharmacology)
• Carbonic Anhydrase II (antagonists & inhibitors, metabolism)
• Carbonic Anhydrase Inhibitors (chemical synthesis, chemistry, pharmacology)
• Cell Line
• Cell Survival (drug effects)
• Dose-Response Relationship, Drug
• Drug Discovery
• Humans
• Isoenzymes (antagonists & inhibitors, metabolism)
• Mice
• Microsomes, Liver (chemistry, metabolism)
• Molecular Structure
• Structure-Activity Relationship
• Sulfonamides (chemical synthesis, chemistry, pharmacology)