کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1360495 | 981438 | 2008 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Potent CCR4 antagonists: Synthesis, evaluation, and docking study of 2,4-diaminoquinazolines Potent CCR4 antagonists: Synthesis, evaluation, and docking study of 2,4-diaminoquinazolines](/preview/png/1360495.png)
A series of CC chemokine receptor-4 (CCR4) antagonists were examined in a previous report in an attempt to improve metabolic stability in human liver microsomes. In this study, the cycloheptylamine moiety of N-cycloheptyl-6,7-dimethoxy-2-(4-pyrrolidin-1-ylpiperidin-1-yl)quinazolin-4-amine 1 was replaced with the p-chloroaniline moiety, and the resulting compound, N-(4-chlorophenyl)-6,7-dimethoxy-2-(4-pyrrolidin-1-ylpiperidin-1-yl)quinazolin-4-amine (8c), retained its potency ([35S]GTPγS-binding inhibition and CCL22-induced chemotaxis in humans/mice). Based on the structure–activity relationships (SAR), a homology model was constructed for CCR4 to explain the binding mode of 8c. Overall, there was good agreement between the docking pose of the CCR4 homology model and the human [35S]GTPγS assay results. Administration of 8c in a murine model of acute dermatitis showed anti-inflammatory activity (oxazolone-induced contact hypersensitivity test).
The novel N-(4-chlorophenyl)-6,7-dimethoxy-2-(4-pyrrolidin-1-ylpiperidin-1-yl)quinazolin-4-amine 8c was found to be a potent competitive CCR4 antagonist and showed anti-inflammatory activity in a murine model of acute dermatitis.Figure optionsDownload as PowerPoint slide
Journal: Bioorganic & Medicinal Chemistry - Volume 16, Issue 17, 1 September 2008, Pages 7968–7974