3-烃基-1(3H)-异苯并硒吩酮的合成及其抗血小板聚集和抗氧化活性

Synthesis and antiplatelet aggregation / antioxidant activity of 3-alkyl-benzo[c] selenophen-1(3H)-ones

邻苯二甲酰氯(1)与硒氢化铝锂反应制备1,3-异苯并硒吩二酮(2),然后与格式试剂加成、水解得3-羟基-3-烃基-1(3H)-异苯并硒吩酮(3a^3h),最后在氢碘酸作用下得到目标化合物4a^4h,结构经MS及1H NMR确证。采用Born氏比浊法检测目标物对二磷酸腺苷(ADP)诱导的血小板聚集抑制活性;采用黄嘌呤氧化酶法和邻二氮菲法检测目标化合物的抗氧化活性。结果表明,化合物4a^4h对ADP诱导的血小板聚集显示了不同程度的抑制作用,其中化合物4f的血小板聚集抑制活性最强,优于丁苯酞。此外,化合物4f还显示了较强的体外清除羟基自由基的能力,活性与依达拉奉相当,值得进一步研究。

Phthaloyl dichloride （1）was reacted with LiAlSeH2 to give benzo[c]selenophene-1;3-dione （2）;which was treated with the Grignard reagents to generate hydroxyl compounds 3a-3h.These compounds were finally converted to target products 4a-4h by treatment with hydriodic acid.The structures of 4a-4h were confirmed by MS and 1 H NMR.Their inhibitory activity against adenosine diphosphate （ADP）-induced platelet aggregation was evaluated by Born′s turbidimetric assay;free radical scavenging activity was assayed by xanthine oxidasemethod and 1;10-phenanthroline spectrophotometric method.It was found that compound 4 f displayed more potent inhibi-tory effect on platelet aggregation than 3-n-butylphthalide and comparable hydroxyl free radical scavenging activity in vitro to that of edaravone.Therefore;compound 4 f might be the candidate for further investigation.