2-(4-chlorophenylthio)-5-(pyrazin-2-yl)-1,3,4-thiadiazole | 1404052-57-8

• 分子结构分类: 有机化合物 - 有机硫化合物 - 硫醚类
• 英文名称: 2-(4-chlorophenylthio)-5-(pyrazin-2-yl)-1,3,4-thiadiazole
• 英文别名: 2-((4-chlorobenzyl)thio)-5-(pyrazin-2-yl)-1,3,4-thiadiazole；2-[(4-Chlorophenyl)methylsulfanyl]-5-pyrazin-2-yl-1,3,4-thiadiazole；2-[(4-chlorophenyl)methylsulfanyl]-5-pyrazin-2-yl-1,3,4-thiadiazole
• CAS: 1404052-57-8
• 化学式: C₁₃H₉ClN₄S₂
• 分子量: 320.826
• InChiKey: VUPIKGBTRLOJMJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  105
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  potassium 2-(pyrazine-2-carbonyl)hydrazinecarbodithioate 在 硫酸 、 potassium carbonate 作用下， 以 丙酮 为溶剂， 生成 2-(4-chlorophenylthio)-5-(pyrazin-2-yl)-1,3,4-thiadiazole
  参考文献：
  名称：

  含吡嗪部分作为潜在端粒酶抑制剂的杂环唑衍生物的设计，合成和生物学评估

  摘要：

  已设计，合成，结构确定了三系列含有吡嗪的新型杂环唑类衍生物（5a - 5k，8a - 8k和11a - 11k），并评估了它们的生物活性作为潜在的端粒酶抑制剂。间的恶二唑衍生物，化合物5c中显示针对SW1116癌细胞系的最有效的生物活性（IC 50  = 2.46μM针对SW1116和IC 50  = 3.55μM端粒酶）。化合物8h在噻二唑衍生物中表现最好（ 针对HEPG2和IC 50的IC 50 = 0.78μM 端粒酶的浓度为1.24μM），与阳性对照相当。而化合物11F显示出最有效的生物活性（IC 50  = 4.12μM针对SW1116和IC 50 的三唑衍生物中= 15.03μM端粒酶）。通过将化合物5c，8h和11f置于端粒酶结构活性位点进行对接模拟，以探索可能的结合模型。凋亡的结果表明化合物8h对HEPG2癌细胞系具有良好的抗肿瘤活性。因此，化合物8h在肿瘤生长中具有强抑制

  DOI：

  10.1016/j.bmc.2012.08.059

文献信息

• Yoda1 analogue (Dooku1) which antagonizes Yoda1-evoked activation of Piezo1 and aortic relaxation
  作者：Elizabeth L Evans、Kevin Cuthbertson、Naima Endesh、Baptiste Rode、Nicola M Blythe、Adam J Hyman、Sally J Hall、Hannah J Gaunt、Melanie J Ludlow、Richard Foster、David J Beech

  DOI：10.1111/bph.14188

  日期：2018.5

  Background and PurposeThe mechanosensitive Piezo1 channel has important roles in vascular physiology and disease. Yoda1 is a small‐molecule agonist, but the pharmacology of these channels is otherwise limited.Experimental ApproachYoda1 analogues were generated by synthetic chemistry. Intracellular Ca2+ and Tl+ measurements were made in HEK 293 or CHO cell lines overexpressing channel subunits and in HUVECs, which natively express Piezo1. Isometric tension recordings were made from rings of mouse thoracic aorta.Key ResultsModification of the pyrazine ring of Yoda1 yielded an analogue, which lacked agonist activity but reversibly antagonized Yoda1. The analogue is referred to as Dooku1. Dooku1 inhibited 2 μM Yoda1‐induced Ca2+‐entry with IC50s of 1.3 μM (HEK 293 cells) and 1.5 μM (HUVECs) yet failed to inhibit constitutive Piezo1 channel activity. It had no effect on endogenous ATP‐evoked Ca2+ elevation or store‐operated Ca2+ entry in HEK 293 cells or Ca2+ entry through TRPV4 or TRPC4 channels overexpressed in CHO and HEK 293 cells. Yoda1 caused dose‐dependent relaxation of aortic rings, which was mediated by an endothelium‐ and NO‐dependent mechanism and which was antagonized by Dooku1 and analogues of Dooku1.Conclusion and ImplicationsChemical antagonism of Yoda1‐evoked Piezo1 channel activity is possible, and the existence of a specific chemical interaction site is suggested with distinct binding and efficacy domains.