Discovery of Dipyridamole Analogues with Enhanced Metabolic Stability for the Treatment of Idiopathic Pulmonary Fibrosis.

Discovery of Dipyridamole Analogues with Enhanced Metabolic Stability for the Treatment of Idiopathic Pulmonary Fibrosis.
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发现具有增强代谢稳定性的双嘧达莫类似物用于治疗特发性肺纤维化

DOI:
10.3390/molecules27113452
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发表时间:
2022-05-26
期刊:
Molecules (Basel, Switzerland)
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双嘧达莫除具有抗血小板和磷酸二酯酶抑制活性外,是一种很有前途的治疗肺纤维化的老药。然而,双嘧达莫在大鼠肝微粒体(RLM)中的半衰期(T1/2)为7 min,显示出较差的药代动力学特性。为了提高双嘧达莫的代谢稳定性,利用分子对接的方法设计了一系列嘧啶并嘧啶衍生物。在所有24种合成的化合物中,化合物(S)-4h在RLM中显示出出色的代谢稳定性(T1/2 = 67 min),对PDE 5的IC 50为332 nM。此外,一些有趣的构效关系(SAR)的协助下,分子对接进行了解释。
Dipyridamole, apart from its well-known antiplatelet and phosphodiesterase inhibitory activities, is a promising old drug for the treatment of pulmonary fibrosis. However, dipyridamole shows poor pharmacokinetic properties with a half-life (T1/2) of 7 min in rat liver microsomes (RLM). To improve the metabolic stability of dipyridamole, a series of pyrimidopyrimidine derivatives have been designed with the assistance of molecular docking. Among all the twenty-four synthesized compounds, compound (S)-4h showed outstanding metabolic stability (T1/2 = 67 min) in RLM, with an IC50 of 332 nM against PDE5. Furthermore, some interesting structure–activity relationships (SAR) were explained with the assistance of molecular docking.
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