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New pentadienone oxime ester derivatives: synthesis and anti-inflammatory activity.

ABSTRACT: To develop novel anti-inflammatory agents, a series of new pentadienone oxime ester compounds were designed and synthesized. The structures were determined by IR, ¹H NMR, ¹³C NMR, and HRMS. All compounds have been screened for their anti-inflammatory activity by evaluating their inhibition against LPS-induced nitric oxide (NO) release in RAW 264.7 cell. Among them, compound 5j was found to be one of the most potent compounds in inhibiting NO and IL-6 (IC₅₀ values were 6.66 µM and 5.07 µM, respectively). Preliminary mechanism studies show that title compound 5j could significantly suppress expressions of nitric oxide synthase, COX-2, and NO, IL-6 through Toll-like receptor 4/mitogen-activated protein kinases/NF-κB signalling pathway. These data support further studies to assess rational design of more efficient pentadienone oxime ester derivatives with anti-inflammatory activity in the future.

SUBMITTER: Li Q

PROVIDER: S-EPMC6010105 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature

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New pentadienone oxime ester derivatives: synthesis and anti-inflammatory activity.

Li Qin Q Zhang Juping J Chen Liu Zeng LZ Wang Jie Quan JQ Zhou Hai Ping HP Tang Wen Jian WJ Xue Wei W Liu Xin Hua XH

Journal of enzyme inhibition and medicinal chemistry 20181201 1

To develop novel anti-inflammatory agents, a series of new pentadienone oxime ester compounds were designed and synthesized. The structures were determined by IR, 1H NMR, 13 C NMR, and HRMS. All compounds have been screened for their anti-inflammatory activity by evaluating their inhibition against LPS-induced nitric oxide (NO) release in RAW 264.7 cell. Among them, compound 5j was found to be one of the most potent compounds in inhibiting NO and IL-6 (IC50 value ...[more]

PMID: 29199491

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