2-arylethenesulfonamide derivatives, a novel class of ETA-selective endothelin (ET) receptor antagonists, including the compounds 1a, b. Compound 1a showed excellent oral antagonistic activities and pharmacokinetic profiles, and the monopotassium salt of 1 (YM-598 monopotassium) is in clinical trials. In this paper, we wish to report the investigation of the further details of structure-activity relationships (SARs)
在先前的论文中,我们描述了一系列2-芳基磺酰胺衍
生物,这是一类新型的ETA-选择性内皮素(ET)受体拮抗剂,包括化合物1a,b。化合物1a具有出色的口服拮抗活性和药代动力学特征,单
钾盐1(YM-598单
钾盐)正在临床试验中。在本文中,我们希望报告对1a中的2-苯基
乙烯磺酰胺区域的构效关系(
SAR)的进一步研究。发现1a中苯基的2位,4位和6位的甲基取代导致发现ET(A)/ ET(B)混合拮抗剂(6s),IC50为2.2 nM。 ET(A)受体。