Synthesis and evaluation of novel angiotensin II receptor 1 antagonists as anti-hypertension drugs
作者:Xiaolu Bao、Weibo Zhu、Ruijing Zhang、Caihong Wen、Li Wang、Yijia Yan、Hesheng Tang、Zhilong Chen
DOI:10.1016/j.bmc.2016.03.028
日期:2016.5
Three new angiotensin II receptor 1 antagonists, 1, 2 and 3 were designed, synthesized and evaluated. The AT1 receptor-binding assays in vitro showed that all the synthesized compounds had nanomolar affinity for the AT1 receptor. From which compound 3 was found to be the most potent ligands with an IC50 value of 2.67+/-0.23nM. Biological evaluation in vivo revealed that all the compounds could cause
设计,合成和评估了三种新的血管紧张素II受体1拮抗剂1、2和3。体外AT1受体结合试验表明,所有合成的化合物对AT1受体均具有纳摩尔浓度的亲和力。从中发现化合物3是最有效的配体,IC50值为2.67 +/- 0.23nM。体内生物学评估显示,所有化合物均可在自发性高血压大鼠中以剂量依赖性方式显着降低MBP,化合物3特别显示出有效且持久的降压作用,其最大反应降低了41mmHg的MBP。口服10mg / kg和15mg / kg时为62mmHg,抗高血压作用持续超过12h,优于参考化合物洛沙坦。药代动力学实验表明,化合物3可以在Wistar大鼠的血液和组织中被有效吸收并顺利代谢。急性毒性试验表明它具有低毒性,LD50值为2974.35mg / kg。这些结果表明,化合物3是有效的血管紧张素AT1受体拮抗剂,可以被认为是新型的抗高血压候选药物,值得进一步研究。