A Novel Series of Thromboxane A2 Synthetase Inhibitors with Free Radical Scavenging and Anti-peroxidative Activities.
作者:Shoji KAMIYA、Hiroaki SHIRAHASE、Shohei NAKAMURA、Mamoru KANDA、Hiroshi MATSUI、Akihisa YOSHIMI、Masayasu KASAI、Kenji TAKAHASHI、Kazuyoshi KURAHASHI
DOI:10.1248/cpb.49.563
日期:——
of rat brain homogenate and on arachidonate-induced TXA2-dependent aggregation of rabbit platelets. The anti-platelet and anti-peroxidative activities were related to the lipophilicity of the 5-substituent. The 5-hexyloxy derivative (13) showed about 35-fold higher inhibitory activity on TXA2 synthesis than that of ozagrel and about 100-fold higher activity on lipid peroxidation than that of alpha-tocopherol
合成了一系列具有咪唑和羧基部分的吲哚啉衍生物,并评估了它们对血栓烷A2(TXA2)合成酶的抑制,自由基清除和抗过氧化活性。在合成的化合物中,3- [5-取代的-3- [2-(咪唑-1-基)乙基]吲哚-1-基]丙酸显示出自由基清除活性,并且对大鼠脑匀浆脂质过氧化具有抑制作用以及花生四烯酸酯诱导的兔血小板依赖TXA2的聚集。抗血小板和抗过氧化活性与5-取代基的亲脂性有关。5-己氧基衍生物(13)对TXA2合成的抑制活性比奥扎格雷高约35倍,对脂质过氧化的活性比α-生育酚高约100倍。