New organic nitrate-containing benzyloxy isonipecotanilide derivatives with vasodilatory and anti-platelet activity
作者:Modesto de Candia、Elisabetta Marini、Giorgia Zaetta、Saverio Cellamare、Antonella Di Stilo、Cosimo D. Altomare
DOI:10.1016/j.ejps.2015.03.004
日期:2015.5
a benzyl nitrate analog (15) of compound 1 was also achieved. The in vitro vasodilatory activities, as well as platelet anti-aggregatory effects, of the newly synthesized organic nitrates were assessed. The (ONO2)methyl carbamate-based derivative 5a and the benzyl nitrate analog 15, which on the other hand retain activity as inhibitors of ADP-induced platelet aggregation, exhibited strong NO-mediated
通过将含硝酸盐的部分接枝到已被报道为中度有效的抗血小板药的苄氧基异壬基苯甲酰苯胺衍生物1和2的结构上,合成了许多新的一氧化氮(NO)前体。通过氨基甲酸酯和酰胺键将各种硝基氧基(ONO 2)-烷基侧链共价连接到母体化合物的哌啶氮上,并且还实现了化合物1的硝酸苄基酯类似物(15)的合成。评估了新合成的有机硝酸盐的体外血管舒张活性以及血小板的抗聚集作用。(ONO 2)氨基甲酸甲酯基衍生物5a另一方面,硝酸苄酯类似物15保留作为ADP诱导的血小板聚集抑制剂的活性,对预收缩的大鼠主动脉条显示出强烈的NO介导的血管舒张作用,EC 50值在低纳摩尔范围内(13和分别为29 nM)。用选择性抑制的可溶性鸟苷酸环化酶(s GC)(是NO介导的导致血管平滑肌松弛的途径的关键酶)进行的实验证实,NO参与了观察到的血管舒张。硝酸盐衍生物在酸性水溶液中和pH 7.4下均稳定。在人血清中,与5a不同,后者没有显示出酶催化的分解作用,另一种经过测试(ONO