- Development of 2-amino-4-phenylthiazole analogues to disrupt myeloid differentiation factor 88 and prevent inflammatory responses in acute lung injury
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Myeloid differentiation primary response protein 88 (MyD88), an essential adapter protein used by toll-like receptors (TLR), is a promising target molecule for the treatment of respiratory inflammatory diseases. Previous studies explored the activities of novel 2-amino-4-phenylthiazole analogue (6) in inflammation-induced cancer, and identified the analogue as an inhibitor of MyD88 toll/interleukin-1 receptor (TIR) homology domain dimerization. Here, we describe the synthesis of 47 new analogues by modifying different sites on this lead compound and assessed their anti-inflammatory activities in lipopolysaccharide-induced mouse primary peritoneal macrophages (MPMs). The most promising compound, 15d, was found to effectively interact with MyD88 protein and prevented formation of the MyD88 homodimeric complex. Furthermore, 15d showed in vivo anti-inflammatory activity in LPS-caused model of acute lung injury. This work provides new candidates as MyD88 inhibitors to combat inflammation diseases.
- Chen, Lingfeng,Chen, Hongjin,Chen, Pengqin,Zhang, Wenxin,Wu, Chao,Sun, Chuchu,Luo, Wu,Zheng, Lulu,Liu, Zhiguo,Liang, Guang
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- Substituted thiazole derivative and application thereof
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The invention provides a compound represented by a general formula (I), or a stereoisomer, pharmaceutically acceptable salt, solvate, hydrate, chemically protective form or prodrug thereof. The compound has an effect of inhibiting adenosine receptor 2a (A2a), and can be used as an antagonist of the adenosine receptor 2a (A2A) for treating tumors.
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Paragraph 0153-0154; 0287-0291
(2019/02/13)
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- Halides Held by Bifurcated Chalcogen-Hydrogen Bonds. Effect of μ(S,N-H)Cl Contacts on Dimerization of Cl(carbene)PdII Species
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The reaction of cis-[PdCl2(CNCy)2] (1) with thiazol-2-amines (2-10) leads to the C,N-chelated diaminocarbene-like complexes [PdCl{C(N(H)4,5-R2-thiazol-2-yl)NHCy}(CNCy)] (11-14; 82-91%) in the case of 4,5-R2-thiazol-2-amines (R, R = H, H (2), Me, Me (3), -(CH2)4- (4)) and benzothiazol-2-amine (5) or gives the diaminocarbene species cis-[PdCl2{C(N(H)Cy)N(H)4-R-thiazol-2-yl}(CNCy)] (15-19; 73-93%) for the reaction with 4-aryl-substituted thiazol-2-amines (R = Ph (6), 4-MeC6H4 (7), 4-FC6H4 (8), 4-ClC6H4 (9), 3,4-F2C6H3 (10)). Inspection of the single-crystal X-ray diffraction data for 15-17 and 19 suggests that the structures of all these species exhibit previously unrecognized bifurcated chalcogen-hydrogen bonding μ(S,N-H)Cl and also PdII···PdII metallophilic interactions. These noncovalent interactions collectively connect two symmetrically located molecules of 15-17 and 19, resulting in their solid-state dimerization. The existence of the μ(S,N-H)Cl system and its strength (6-9 kcal/mol) were additionally verified/estimated by a Hirshfeld surface analysis and DFT calculations combined with a topological analysis of the electron density distribution within the formalism of Bader's theory (AIM method) and NBO analysis. The observed noncovalent interactions are jointly responsible for the dimerization of 15-19 not only in the solid phase but also in CHCl3 solutions, as predicted theoretically by DFT calculations and confirmed experimentally by FTIR, HRESI-MS, 1H NMR, and diffusion coefficient NMR measurements. Available CCDC data were processed under the new moiety angle, and the observed μ(S,E-H)Cl systems were classified accordingly to E (E = N, O, C) type atoms.
- Mikherdov, Alexander S.,Novikov, Alexander S.,Kinzhalov, Mikhail A.,Boyarskiy, Vadim P.,Starova, Galina L.,Ivanov, Alexander Yu.,Kukushkin, Vadim Yu.
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p. 3420 - 3433
(2018/03/25)
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- Synthesis, activity, and docking study of phenylthiazole acids as potential agonists of PPARγ
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Peroxisome proliferator-activated receptor gamma (PPARγ) is a ligand-mediated transcription factor playing key roles in glucose and lipid homeostasis, and PPARγ ligands possess therapeutic potential in these as well as other areas. In this study, a series of phenylthiazole acids have been synthesized and evaluated for agonistic activity by a convenient fluorescence polarization-based PPARγ ligand screening assay. Compound 4t, as a potential PPARγ agonist with half maximal effective concentration (EC50) 0.75±0.20 μM, exhibited in vitro potency comparable with a 0.83±0.14 μM of the positive control rosiglitazone. Molecular docking and molecular dynamics simulations indicated that phenylthiazole acid 4t interacted with the amino acid residues of the active site of the PPARγ complex in a stable manner, consistent with the result of the in vitro ligand assay.
- Ma, Liang,Wang, Taijin,Shi, Min,Ye, Haoyu
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p. 1807 - 1815
(2016/06/09)
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- Design, synthesis and biological evaluation of thiazole- and indole-based derivatives for the treatment of type II diabetes
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Present studies have shown that the lipid carrier has a significant role in several aspects of metabolic syndrome in A-FABP/ap2-deficient mice, including type 2 diabetes and atherosclerosis. 38 Thiazole- and indole-based derivatives were synthesized and investigated for their inhibitory effects on the production of LPS-stimulated TNF-α. Among them, 12b exhibited an excellent inhibitory efficiency compared to BMS309403 (95% vs. 85%) at the concentration of 10 μM and a binding affinity for ap2 with the apparent Ki values 33 nM. Oral administration of 12b at a dosage of 50 mg/kg effectively reduced the levels of plasma blood glucose, triglycerides, insulin, total cholesterol and alanine aminotransferase in high-fat/diet-induced obesity model. The results highlighted that 12b was a potent anti-diabetic agent.
- Xu, Qinyuan,Huang, Li,Liu, Juan,Ma, Liang,Chen, Tao,Chen, Jinying,Peng, Fei,Cao, Dong,Yang, Zhuang,Qiu, Neng,Qiu, Jingxiang,Wang, Guangcheng,Liang, Xiaolin,Peng, Aihua,Xiang, Mingli,Wei, Yuquan,Chen, Lijuan
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- FUSED PYRIMIDINE-DIONE DERIVATIVES AS TRPA1 MODULATORS
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The invention described herein relates to novel fused pyrimidinediones derivatives of formula (I) which are TRPA (Transient Receptor Potential subfamily A) modulators. In particular, compounds described herein are useful for treating or preventing diseases, conditions and/or disorders modulated by TRPAl (Transient Receptor Potential subfamily A, member 1). This invention also provides processes for preparing compounds described herein, intermediates used in their synthesis, pharmaceutical compositions thereof, and methods for treating or preventing diseases, conditions and/or disorders modulated by TRPAl. Formula (I)
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Page/Page column 43
(2010/11/03)
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- PYRIMIDINEDIONE-FUSED HETEROCYCLIC COMPOUNDS AS TRPA1 MODULATORS
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The present invention is related to novel pyrimidinedione-fused heterocyclic compounds as TRPA (Transient Receptor Potential subfamily A) modulators. In particular, compounds described herein are useful for treating or preventing diseases, conditions and/or disorders modulated by TRPA1 (Transient Receptor Potential subfamily A, member 1). Also provided herein are processes for preparing compounds described herein, intermediates used in their synthesis, pharmaceutical compositions thereof, and methods for treating or preventing diseases, conditions and/or disorders modulated by TRPA1.
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Page/Page column 47
(2010/11/17)
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- QUINAZOLINEDIONE DERIVATIVES AS TRPA1 MODULATORS
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The present invention provides Quinazolinedione derivatives as TRPA (Transient Receptor Potential subfamily A) modulators. In particular, compounds described herein are useful for treating or preventing diseases, conditions and/or disorders modulated by T
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Page/Page column 17
(2010/01/31)
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- 2-(Benzimidazol-1-Yl)-N-(4-phenylthiazol-2-yl) acetamide derivatives
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The invention relates 2-(benzimidazol-1-yl)-N-(4-phenylthiazol-2-yl)acetamide derivatives having the general Formula I wherein R1 is H, (C1-4)alkyl, (C1-4)alkyloxy or halogen; R2 represents 1-3 substituents sele
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Page/Page column 4
(2010/11/27)
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- 2-(BENZIMIDAZOL-1-YL)-N-(4-PHENYLTHIAZOL-2-YL) ACETAMIDE DERIVATIVES USEFUL IN TREATMENT OF TRPV1 RELATED DISORDERS
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The invention relates to 2-(benzimidazol-1-yl)-N-(4-phenylthiazol-2-yl) acetamide derivatives having the general Formula (I) wherein R1 is H, (C1-4)alkyl, (C1-4)alkyloxy or halogen; R2 represents 1-3 substituents selected from H, (C1-4)alkyl (optionally s
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Page/Page column 10
(2010/11/27)
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- UREA DERIVATIVES METHODS FOR THEIR MANUFACTURE AND USES THEREOF
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The present invention provides compounds of formula (I): in which R 1, R'1, R2, R'2, R3, Y and G have the meanings given in the description, to a process for their preparation, their application by way of medicaments, and to pharmaceutical compositions containing them.
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Page/Page column 57
(2010/11/24)
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