51229-51-7Relevant articles and documents
Design, synthesis, biological activity evaluation of 3-(4-phenyl-1H-imidazol-2-yl)-1H-pyrazole derivatives as potent JAK 2/3 and aurora A/B kinases multi-targeted inhibitors
Zheng, You-Guang,Wang, Jin-An,Meng, Long,Pei, Xin,Zhang, Ling,An, Lin,Li, Cheng-Lin,Miao, Ying-Long
, (2020/10/29)
In this study, a series of 3-(4-phenyl-1H-imidazol-2-yl)-1H-pyrazole derivatives were designed, synthesized, and evaluated for their biological activities. Upon performing kinase assays, most of the compounds exhibited potent inhibition against JAK2/3 and Aurora A/B with the IC50 values ranging from 0.008 to 2.52 μM. Among these derivatives, compound 10e expressed the most moderate inhibiting activities against all the four kinases with the IC50 values of 0.166 μM (JAK2), 0.057 μM (JAK3), 0.939 μM (Aurora A), and 0.583 μM (Aurora B), respectively. Moreover, most of the derived compounds exhibited potent cytotoxicity against human chronic myeloid leukemia cells K562 and human colon cancer cells HCT116, while compound 10e expressed antiproliferative activities against K562 (IC50=6.726 μM). According to western blot analysis, compound 10e down-regulated the phosphorylation of STAT3, STAT5, Aurora A, and Aurora B in a dose-dependent manner in K562 and HCT116 cells. Cell cycle analysis revealed that compound 10e inhibited the proliferation of cells by inducing cell cycle arrest in the G2 phase. The molecular modeling suggested that compound 10e could maintain a binding mode similar to the binding mode of AT9832, a common JAK 2/3 and Aurora A/B kinases multi-target kinase inhibitor. Therefore, compound 10e might be a potential agent for cancer therapy deserving further research.
Non-natural amino acid and application thereof Recombinant protein and recombinant protein conjugate comprising same
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Paragraph 0076; 0080-0082; 0100; 0104-0106; 0122; 0126-0128, (2021/11/03)
The invention provides a non-natural amino acid. A compound represented by formula (I) or an enantiomer thereof. The invention also provides application of the non-natural amino acid. Further, the present invention also provides a protein conjugate comprising the recombinant protein and of the non-natural amino acid prepared from the recombinant protein. The non-natural amino acid provided by the invention is simple and convenient to prepare, good in safety, not prone to inactivation during protein insertion, high in conjugate rate with a coupling part, and higher in stability of the obtained conjugate.
3-(4-phenyl-1H-2-imidazolyl)-1H-pyrazole compound as well as preparation method and application thereof
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Paragraph 0074-0076, (2020/04/22)
The invention relates to a 3-(4-phenyl-1H-2-imidazolyl)-1H-pyrazole compound as well as a preparation method and application thereof, and belongs to the field of medicinal chemistry and pharmacotherapeutics. The invention provides application of a compound shown as a formula I or pharmaceutically acceptable salt thereof in preparation of drugs for treating tumor-related diseases, particularly an application in preparation of an Aurora A kinase specific inhibitor.