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Triazole-linked transition state analogs as selective inhibitors against V. cholerae sialidase.

ABSTRACT: Sialidases or neuraminidases are enzymes that catalyze the cleavage of terminal sialic acids from oligosaccharides and glycoconjugates. They play important roles in bacterial and viral infection and have been attractive targets for drug development. Structure-based drug design has led to potent inhibitors against neuraminidases of influenza A viruses that have been used successfully as approved therapeutics. However, selective and effective inhibitors against bacterial and human sialidases are still being actively pursued. Guided by crystal structural analysis, several derivatives of 2-deoxy-2,3-didehydro-N-acetylneuraminic acid (Neu5Ac2en or DANA) were designed and synthesized as triazole-linked transition state analogs. Inhibition studies revealed that glycopeptide analog E-(TriazoleNeu5Ac2en)-AKE and compound (TriazoleNeu5Ac2en)-A were selective inhibitors against Vibrio cholerae sialidase, while glycopeptide analog (TriazoleNeu5Ac2en)-AdE selectively inhibited Vibrio cholerae and A. ureafaciens sialidases.

SUBMITTER: Slack TJ 

PROVIDER: S-EPMC6326775 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Triazole-linked transition state analogs as selective inhibitors against V. cholerae sialidase.

Slack Teri J TJ   Li Wanqing W   Shi Dashuang D   McArthur John B JB   Zhao Gengxiang G   Li Yanhong Y   Xiao An A   Khedri Zahra Z   Yu Hai H   Liu Yang Y   Chen Xi X  

Bioorganic & medicinal chemistry 20181027 21

Sialidases or neuraminidases are enzymes that catalyze the cleavage of terminal sialic acids from oligosaccharides and glycoconjugates. They play important roles in bacterial and viral infection and have been attractive targets for drug development. Structure-based drug design has led to potent inhibitors against neuraminidases of influenza A viruses that have been used successfully as approved therapeutics. However, selective and effective inhibitors against bacterial and human sialidases are s  ...[more]

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