
European Journal of Medicinal Chemistry (2021)
Update date:2022-08-15
Topics:
Jia, Ruifang
Zhang, Jian
Bertagnin, Chiara
Cherukupalli, Srinivasulu
Ai, Wei
Ding, Xiao
Li, Zhuo
Zhang, Jiwei
Ju, Han
Ma, Xiuli
Loregian, Arianna
Huang, Bing
Zhan, Peng
Liu, Xinyong
Encouraged by our earlier discovery of N1-selective inhibitors, the 150-cavity of influenza virus neuraminidases (NAs) could be further exploited to yield more potent oseltamivir derivatives. Herein, we report the design, synthesis and biological evaluation of a series of novel oseltamivir derivatives via the structural modifications at C5–NH2 of oseltamivir targeting 150-cavity. Among them, compound 5c bearing 4-(3-methoxybenzyloxy)benzyl group exhibited the most potent activity, which was lower or modestly improved activities than oseltamivir carboxylate (OSC) against N1 (H1N1), N1 (H5N1) and N1 (H5N1–H274Y). Specifically, there was 30-fold loss of activity against the wild-type strain H1N1. However, 5c displayed 4.85-fold more potent activity than OSC against H5N1–H274Y NA. Also, 5c demonstrated low cytotoxicity in vitro and no acute toxicity in mice. Molecular docking studies provided insights into the high potency of 5c against N1 and N1–H274Y mutant NAs. Besides, the in silico prediction of physicochemical properties and CYP enzymatic inhibitory ability of representative compounds were conducted to evaluate their drug-like properties.
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Doi:10.1016/0022-328X(90)87195-J
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