Non-prostanoid thromboxane A2 receptor antagonists with a dibenzoxepin ring system. 1
作者:Etsuo Ohshima、Hitoshi Takami、Hideyuki Sato、Hiroyuki Obase、Ichiro Miki、Akio Ishii、Akira Karasawa、Kazuhiro Kubo
DOI:10.1021/jm00096a016
日期:1992.9
respectively, for the TXA2/PGH2 receptor. These compounds also significantly inhibited U-46619-induced guinea pig platelet aggregation ex vivo (10 mg/kg po). Compound 41 was resolved into its optically active form. The (-)-isomer was 60-fold more potent than the (+)-isomer in the TXA2/PGH2 receptor binding assay. Some compounds tested in this study showed both TXA2/PGH2 receptor antagonizing and TXA2 synthase
合成了一系列的11-[[[2-[(芳磺酰基)氨基]乙基]硫基] -6,11-二氢二苯并[b,e]氧杂环丁-2-羧酸及其相关衍生物。测试了化合物对豚鼠血小板TXA2 / PGH2受体的拮抗作用。讨论了构效关系。(+/-)-11-[[[2-[(苯乙烯磺酰基)氨基]乙基]-硫代] -6,11-二氢二苯并[b,e]氧杂环丁-2-羧酸(41)和(+/-)- 11-[[[2-[(苯磺酰基)氨基]乙基]硫基] -6,11-二氢二苯并[b,e]噻吩-2-羧酸(4af)是最有前途的化合物,其K(i)值为6.5 + TXA2 / PGH2受体分别为0.29和3.7 +/- 0.31 nM。这些化合物离体(10 mg / kg po)还显着抑制了U-46619诱导的豚鼠血小板聚集。将化合物41拆分成其光学活性形式。在TXA2 / PGH2受体结合试验中,(-)异构体的效力比(+)异构体强60倍。在这项研究中测试的某些化合物同时具有TXA2