Synthesis and bioactivity of 3,5-dimethylpyrazole derivatives as potential PDE4 inhibitors
作者:De-Kun Hu、Dong-Sheng Zhao、Min He、Hong-Wei Jin、Yong-Mei Tang、Lian-Hui Zhang、Gao-Peng Song、Zi-Ning Cui
DOI:10.1016/j.bmcl.2018.03.031
日期:2018.10
A series of 3,5-dimethylpyrazole derivatives containing 5-phenyl-2-furan moiety were designed and synthesized as phosphodiesterase type 4 (PDE4) inhibitors. Bioassay results showed that the title compounds exhibited considerable inhibitory activity against PDE4B and blockade of LPS-induced TNFα release. Among the designed compounds, compound If showed the best inhibitory activity against PDE4B with
设计并合成了一系列含有5-苯基-2-呋喃部分的3,5-二甲基吡唑衍生物,作为4型磷酸二酯酶(PDE4)抑制剂。生物测定结果表明,该标题化合物显示出相当大的抑制活性对PDE4B和LPS诱导的TNF阻断α释放。在设计的化合物中,化合物If对PDE4B表现出最佳的抑制活性,IC 50值为1.7μM,在哮喘/ COPD和LPS诱发的败血症动物模型中也显示出良好的体内活性。初步的结构-活性关系(SAR)研究和对接结果表明,在对位苯环上引入取代基位置,特别是甲氧基,有助于增强对PDE4B的抑制活性。