Synthesis and High-Throughput Screening of N-Acetyl-β-hexosaminidase Inhibitor Libraries Targeting Osteoarthritis
摘要:
C1 Nitrogen iminocyclitols are potent inhibitors of N-acetyl-beta-hexosaminidases. Given hexosaminidases' important roles in osteoarthritis, we developed two straightforward and efficient syntheses of C1 nitrogen iminocyclitols from two readily available starting materials, D-mannosamine hydrochloride and the microbial oxidation product of fructose. A diversity-oriented synthetic strategy was then performed by coupling these core structures with various aldehydes, carboxylic acids, and alkynes to generate three separate libraries. High-throughput screening of the generated libraries with human N-acetyl-beta-hexosaminidases produced only moderate inhibitory activities. However, the synthetic approach and screening strategy for these compounds will be applied to develop new potent inhibitors of human N-acetyl-beta-hexosaminidases, particularly when combined with the structural information of these enzymes.
Synthesis of the Heparin-Based Anticoagulant Drug Fondaparinux
作者:Cheng-Hsiu Chang、Larry S. Lico、Teng-Yi Huang、Shu-Yi Lin、Chi-Liang Chang、Susan D. Arco、Shang-Cheng Hung
DOI:10.1002/anie.201404154
日期:2014.9.8
Fondaparinux, a synthetic pentasaccharide based on the heparin antithrombin‐binding domain, is an approved clinical anticoagulant. Although it is a better and safer alternative to pharmaceutical heparins in many cases, its high cost, which results from the difficult and tedious synthesis, is a deterrent for its widespread use. The chemical synthesis of fondaparinux was achieved in an efficient and
A green and regioselective acetylation of thioglycoside with ethyl acetate
作者:Pi-Hui Liang、Yin-Jen Lu、Ting-Hsuan Tang
DOI:10.1016/j.tetlet.2010.10.135
日期:2010.12
Treatment of saccharidic polyols in ethyl acetate with catalytic sulfuric acid leads to the corresponding primary monoacetate derivatives in good yields. The transesterification was realized by simple stirring without rigorous exclusion of moisture or oxygen. Our protocol is applicable to the regioselective mono-acetylation of amino sugars having different substituents at the 2-positions. (C) 2010 Elsevier Ltd. All rights reserved.
OLIGOSACCHARIDE LINKER, LINKER-PAYLOAD COMPRISING THE SAME AND GLYCAN CHAIN-REMODELED ANTIBODY-DRUG CONJUGATE, PREPARATION METHODS AND USES THEREOF
申请人:GENEQUANTUM HEALTHCARE CO., LTD.
公开号:US20240082419A1
公开(公告)日:2024-03-14
The present disclosure further relates to a linker-payload compound including an oligosaccharide group, especially a disaccharide group, where the oligosaccharide group is linked to the remainder of the compound by an amide bond. The present disclosure further relates to an antibody-drug conjugate (ADC) containing the linker-payload compound, where the glycan chain in an antibody is remodeled with the oligosaccharide moiety in the linker-payload compound. The present disclosure further relates to preparation methods and use of the above-mentioned substances.