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Design, synthesis and biological evaluation of spiropyrazolopyridone derivatives as potent dengue virus inhibitors
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6 01 2020
Source: Bioorg Med Chem Lett. 30(11):127162 -
Alternative Title:Bioorg Med Chem Lett
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Description:The effective treatment for dengue virus infection continues to be a challenge. We herein reported our continued SAR exploration on the spiropyrazolopyridone scaffold. Introducing different substituents at the 3́- or 5́-site of the pyrazolopyridone core or moving the benzyl chain to the adjacent nitrogen led to a significant loss of potency on DENV-2. While a narrow range of substitutions were tolerated at the para-position of the phenyl ring, di-substitution on the phenyl ring is beneficial for DENV-2 potency and has variable influences on DENV-3 potency depending on the exact compound. Among these molecules, compounds 22 (JMX0376) with 4-chloro-3-fluorobenzyl and 24 (JMX0395) with 2,4-bis(trifluoromethyl)benzyl showed the most potent and broadest inhibitory activities against DENV-1 to -3 with nanomolar to low micromolar EC| values.
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Pubmed ID:32247736
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Pubmed Central ID:PMC8848308
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