Design and synthesis of naphthalimide group-bearing thioglycosides as novel β-N-acetylhexosaminidases inhibitors

GH20 human β-N-acetylhexosaminidases (hsHex) and GH84 human O-GlcNAcase (hOGA) are involved in numerous pathological processes and emerged as promising targets for drug discovery. Based on the catalytic mechanism and structure of the catalytic domains of these β-N-acetylhexosaminidases, a series of...

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Main Authors: Shengqiang Shen (Author), Wei Chen (Author), Lili Dong (Author), Qing Yang (Author), Huizhe Lu (Author), Jianjun Zhang (Author)
Format: Book
Published: Taylor & Francis Group, 2018-01-01T00:00:00Z.
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Summary:GH20 human β-N-acetylhexosaminidases (hsHex) and GH84 human O-GlcNAcase (hOGA) are involved in numerous pathological processes and emerged as promising targets for drug discovery. Based on the catalytic mechanism and structure of the catalytic domains of these β-N-acetylhexosaminidases, a series of novel naphthalimide moiety-bearing thioglycosides with different flexible linkers were designed, and their inhibitory potency against hsHexB and hOGA was evaluated. The strongest potency was found for compound 15j (Ki = 0.91 µM against hsHexB; Ki > 100 µM against hOGA) and compound 15b (Ki = 3.76 µM against hOGA; Ki = 30.42 µM against hsHexB), which also exhibited significant selectivity between these two enzymes. Besides, inhibitors 15j and 15b exhibited an inverse binding patterns in docking studies. The determined structure-activity relationship as well as the established binding models provide the direction for further structure optimizations and the development of specific β-N-acetylhexosaminidase inhibitors.
Item Description:1475-6366
1475-6374
10.1080/14756366.2017.1419217