Optimization of Chromeno[2,3-<i>c</i>]pyrrol-9(2<i>H</i>)-ones as Highly Potent, Selective, and Orally Bioavailable PDE5 Inhibitors: Structure–Activity Relationship, X-ray Crystal Structure, and Pharmacodynamic Effect on Pulmonary Arterial Hypertension
作者:Deyan Wu、Yadan Huang、Yiping Chen、Yi-You Huang、Haiju Geng、Tianhua Zhang、Chen Zhang、Zhe Li、Lei Guo、Jianwen Chen、Hai-Bin Luo
DOI:10.1021/acs.jmedchem.8b01209
日期:2018.9.27
To further explore the structure–activity relationship around the chromeno[2,3-c]pyrrol-9(2H)-one scaffold, 19 derivatives as inhibitors against PDE5 were discovered. The most potent inhibitor 3 has an IC50 of 0.32 nM with remarkable selectivity and druglike profile. Oral administration of 3 (1.25 mg/kg) caused comparable therapeutic effects to sildenafil (10.0 mg/kg) against pulmonary arterial hypertension
为了进一步探索铬诺[2,3 - c ]吡咯-9(2 H)-一个支架周围的结构-活性关系,发现了19种衍生物作为PDE5抑制剂。最有效的抑制剂3的IC 50为0.32 nM,具有显着的选择性和类药物特性。口服3(1.25 mg / kg)与西地那非(10.0 mg / kg)对肺动脉高压的治疗效果相当。此外,在共晶结构中揭示了与昔多芬不同的结合模式,这为发现高效PDE5抑制剂提供了结构模板。