活性氧(ROS)是有机硝酸盐药物耐受和内皮功能障碍的主要原因。为了清除 ROS 并维持硝酸盐的治疗效果,我们将 NIT 型氮氧化物和 5-ISMN 结合,设计并合成了 10 种新型双作用硝酸盐分子。其中包括两种新型差向异构氮氧化物-硝酸盐偶联物(15( S )和15( R )),它具有药效团连接。我们还合成了 8 个不含 5-ISMN 的 NIT 自由基,以比较这些新型一氧化氮供体的活性。几种基于双效氮氧化物的硝酸盐缀合物显示出在人脐静脉内皮细胞中释放 NO 并引起抗氧化作用的能力。在这些缀合物中,15( S )表现出最显着的促血管舒张作用。在血管紧张素 II 输注诱导的高血压小鼠中,15( S )治疗 4 周降低了收缩压和舒张压,并改善了孤立胸主动脉的血管内皮和平滑肌功能。此外,小鼠血管结构得到恢复,血管氧化应激降低。结果表明,这些新型一氧化氮供体可用作治疗血管疾病的潜在药物。因此,结合使用抗氧化剂和
活性氧(ROS)是有机硝酸盐药物耐受和内皮功能障碍的主要原因。为了清除 ROS 并维持硝酸盐的治疗效果,我们将 NIT 型氮氧化物和 5-ISMN 结合,设计并合成了 10 种新型双作用硝酸盐分子。其中包括两种新型差向异构氮氧化物-硝酸盐偶联物(15( S )和15( R )),它具有药效团连接。我们还合成了 8 个不含 5-ISMN 的 NIT 自由基,以比较这些新型一氧化氮供体的活性。几种基于双效氮氧化物的硝酸盐缀合物显示出在人脐静脉内皮细胞中释放 NO 并引起抗氧化作用的能力。在这些缀合物中,15( S )表现出最显着的促血管舒张作用。在血管紧张素 II 输注诱导的高血压小鼠中,15( S )治疗 4 周降低了收缩压和舒张压,并改善了孤立胸主动脉的血管内皮和平滑肌功能。此外,小鼠血管结构得到恢复,血管氧化应激降低。结果表明,这些新型一氧化氮供体可用作治疗血管疾病的潜在药物。因此,结合使用抗氧化剂和
Fragment evolution for GPCRs: the role of secondary binding sites in optimization
作者:Florent Chevillard、Ádám Kelemen、Jillian G. Baker、Vivien A. Aranyodi、Frank Balzer、Peter Kolb、György M. Keserű
DOI:10.1039/d1cc04636e
日期:——
We developed a docking-based fragment evolution approach that extends orthosteric fragments towards a less conserved secondary binding pocket of GPCRs. Evaluating 13 000 extensions for the β1- and β2-adrenergic receptors we synthesized and tested 112 bitopic molecules. Our results confirmed the positive contribution of the secondary binding pocket to both potency and selectivity optimizations.
Design, Synthesis, and Biological Evaluation of Thiazolidine-2,4-dione Conjugates as PPAR-γ Agonists
作者:Syed Nazreen、Mohammad Sarwar Alam、Hinna Hamid、Mohammad Shahar Yar、Abhijeet Dhulap、Perwez Alam、Mohammad Abdul Qadar Pasha、Sameena Bano、Mohammad Mahboob Alam、Saqlain Haider、Chetna Kharbanda、Yakub Ali、Kolakappi Pillai
DOI:10.1002/ardp.201400280
日期:2015.6
A library of synthesized conjugates of phenoxy acetic acid and thiazolidinedione 5a–m showed potent peroxisome proliferator activated receptor‐γ (PPAR‐γ) transactivation as well as significant blood glucose lowering effect comparable to the standard drugs pioglitazone and rosiglitazone. Most of the compounds showed higher docking scores than the standard drug rosiglitazone in the molecular docking
A radiation-sensitive composition containing a resist compound having a high sensitivity, a high resolution, a high etching resistance, and a low outgas which forms a resist pattern with a good shape is described. Further described is a method of forming a resist pattern using the radiation-sensitive composition. Still further described are a novel composition for forming a photoresist under coat film which is excellent in optical properties and etching resistance and contains substantially no sublimable substance and an under coat film formed by the composition. Still further described are a radiation-sensitive composition containing a solvent and a cyclic compound having a specific structure, for example, a cyclic compound (A) having a molecular weight of 700 to 5000 which is synthesized by the condensation reaction of a compound having 2 to 59 carbon atoms and 1 to 4 formyl groups (aldehyde compound (A1)) with a compound having 6 to 15 carbon atoms and 1 to 3 phenolic hydroxyl groups (phenol compound (A2)), and a cyclic compound for use in the radiation-sensitive composition.