- 4-Aminopyrimidine compound, and preparation method and medicinal use thereof
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The invention belongs to the field of medicines, and concretely relates to a 4-aminopyrimidine compound having a structural represented by formula (I), or pharmaceutically acceptable salts thereof, a preparation method of the compound, and a use of the compound and the salts as a Bruton tyrosine kinase (BTK) inhibitor. A result of experiments shows that the compound has a significant inhibition effect on the BTK, and can be used for treating thromboembolism, inflammatory disorders, autoimmune diseases, Waldenstrom macroglobulinemia, B cell lymphomas and other diseases.
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Paragraph 0087; 0088
(2017/09/01)
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- Structure-based discovery of novel 4,5,6-trisubstituted pyrimidines as potent covalent Bruton's tyrosine kinase inhibitors
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A series of novel 4,5,6-trisubstituted pyrimidines were designed as potent covalent Bruton's tyrosine kinase (BTK) inhibitors based on the structure of ibrutinib by using a ring-opening strategy. Among these derivatives, compound I1 exhibited the most potent inhibitory activity with an IC50 value of 0.07 μM. The preliminary structure-activity relationship was discussed and the primary amino group at the C-4 position of pyrimidine was crucial for maintaining BTK activity. Furthermore, molecular dynamics simulations and binding free energy calculations were performed for three inhibitor-BTK complexes to determine the probable binding model, which provided a comprehensive guide for further structural modification and optimization.
- Zou, Yi,Xiao, Jianhu,Tu, Zhengchao,Zhang, Yingyi,Yao, Kun,Luo, Minghao,Ding, Ke,Zhang, Yihua,Lai, Yisheng
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p. 3052 - 3059
(2016/06/13)
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- Design, synthesis, and structure-activity relationship studies of novel 2,4,6-trisubstituted-5-pyrimidinecarboxylic acids as peroxisome proliferator-activated receptor γ (PPARγ) partial agonists with comparable antidiabetic efficacy to rosiglitazone
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A series of novel 2,4,6-trisubstitutedpyrimidine-5-carboxylic acid derivatives were designed and synthesized with the intent of producing a peroxisome proliferator-activated receptor γ (PPARγ) partial agonist for antidiabetic agents. A pharmacophore-driven approach of in-house screening identified compound 7, which led to the identification of compound 9 featuring a 2,4,6-trisubstituted pyrimidine-5-carboxylic acid core. Structure-activity relationship studies of 9 resulted in identifying 4,6-bisbenzylthio-2- methylthiopyrimidine-5-carboxylic acid (50) as the most attractive of all the screened compounds. The X-ray cocrystal structure of 50 bound on PPARγ revealed that the key hydrogen bond interactions, which are not related to the activation function 2 (AF-2) site, are different from those of the full agonist. Compound 50 showed typical PPARγ partial agonist properties in the PPARγ-GAL4 functional assay and weaker differentiation of adipocytes in 3T3-L1 cells than observed with rosiglitazone. Furthermore, 50 displayed comparable antidiabetic efficacy with rosiglitazone in db/db mice, although its potency is 10-fold weaker than that of rosiglitazone.
- Seto, Shigeki,Okada, Kyoko,Kiyota, Koichi,Isogai, Shigeki,Iwago, Maki,Shinozaki, Takehiro,Kitamura, Yoshiaki,Kohno, Yasushi,Murakami, Koji
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experimental part
p. 5012 - 5024
(2010/09/05)
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