7147-14-0Relevant articles and documents
Design, synthesis, and biological evaluation of N-(3-cyano-1H-indol-5/6-yl)-6-oxo-1,6-dihydropyrimidine-4-carboxamides and 5-(6-oxo-1,6-dihydropyrimidin-2-yl)-1H-indole-3-carbonitriles as novel xanthine oxidase inhibitors
Zhang, Bing,Duan, Yulin,Yang, Yuwei,Mao, Qing,Lin, Fengwei,Gao, Jun,Dai, Xiwen,Zhang, Peng,Li, Qiuhua,Li, Jinxin,Dai, Ronghua,Wang, Shaojie
, (2021/10/26)
Xanthine oxidase (XO) has been an important target for the treatment of hyperuricemia and gout. The analysis of potential interactions of pyrimidinone and 3-cyano indole pharmacophores present in the corresponding reported XO inhibitors with parts of the XO active pocket indicated that they both can be used as effective fragments for the fragment-based design of nonpurine XO inhibitors. In this paper, we adopted the fragment-based drug design strategy to link the two fragments with an amide bond to design the type 1 compounds 13a–13w,14c, 14d, 14f, 14g, 14j, 14k, and 15g. Compound 13g displayed an evident XO inhibitory potency (IC50 = 0.16 μM), which was 52.3-fold higher than that of allopurinol (IC50 = 8.37 μM). For comparison, type 2 compounds 5-(6-oxo-1,6-dihydropyrimidin-2-yl)-1H-indole-3-carbonitriles (25c–25g) were also designed by linking the two fragments with a single bond directly. The results showed that compound 25c from the latter series displayed the best inhibitory potency (IC50 = 0.085 μM), and it was 98.5-fold stronger than that of allopurinol (IC50 = 8.37 μM). These results suggested that amide and single bonds were applicable for linking the two fragments together to obtain potent nonpurine XO inhibitors. The structure–activity relationship results revealed that hydrophobic groups at N-atom of the indole moiety were indispensable for the improvement of the inhibitory potency in vitro against XO. In addition, enzyme kinetics studies suggested that compounds 13g and 25c, as the most promising XO inhibitors for the two types of target compounds, acted as mixed-type inhibitors for XO. Moreover, molecular modeling studies suggested that the pyrimidinone and indole moieties of the target compounds could interact well with key amino acid residues in the active pocket of XO. Furthermore, in vivo hypouricemic effect demonstrated that compounds 13g and 25c could effectively reduce serum uric acid levels at an oral dose of 10 mg/kg. Therefore, compounds 13g and 25c could be potential and efficacious agents for the treatment of hyperuricemia and gout.
N-indole-1,6-dihydropyrimidine-4-carboxamide derivative as well as preparation method and application thereof
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, (2021/07/28)
The invention relates to an N-indole-1,6-dihydropyrimidine-4-carboxamide derivative as well as a preparation method and application thereof, belonging to the technical field of medicines. According to the invention, amide is innovatively applied as a connecting fragment in the design of a non-purine xanthine oxidase inhibitor, and the N-indole-1,6-dihydropyrimidine-4-carboxamide derivative is synthesized. An in-vitro xanthine oxidase inhibitory activity test is carried out on the designed derivative by adopting an ultraviolet spectrophotometric method, and the prepared derivative shows obvious xanthine oxidase inhibitory activity. In an acute hyperuricemia rat model test, the derivative can significantly reduce the uric acid level of serum, and thus has good in-depth research value as the novel xanthine oxidase inhibitor.
N-(indol-5-yl) bicyclic aromatic amide compound as well as preparation method and application thereof
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Paragraph 0046-0047, (2021/05/12)
The invention belongs to the field of medicines, and relates to an N-(indole-5-yl) bicyclic aromatic amide compound as well as a preparation method and application thereof. The structural general formula of the N-(indol-5-yl) bicyclic aromatic amide compound is shown in the specification. A pharmaceutical composition comprises the N-(indol-5-yl) bicyclic aromatic amide compound, a pharmaceutically acceptable salt, a hydrate or a solvate of the N-(indol-5-yl) bicyclic aromatic amide compound, and a pharmaceutically acceptable carrier. The invention further discloses application of the N-(indol-5-yl) bicyclic aromatic amide compound or the pharmaceutically acceptable salt, hydrate or solvate thereof or the pharmaceutical composition in preparation of anti-hyperuricemia and anti-gout drugs. Tests prove that the compound shows a good effect in an in-vitro xanthine oxidase inhibitory activity test. The preparation method provided by the invention is simple and feasible, relatively high in yield and easy for large-scale production.