作者:Yeh-Long Chen、Tai-Chi Wang、Kuan-Han Lee、Cherng-Chyi Tzeng、Ya-Ling Chang、Che-Ming Teng
DOI:10.1002/hlca.19960790308
日期:1996.5.8
In a search for the inhibitors of platelet aggregation, certain coumarin derivatives were synthesized and evaluated for antiplatelet activity against thrombin(Thr)-, arachidonic acid(AA)-, collagen(Col)-, and platelet-activating-factor(PAF)-induced aggregation in washed rabbit platelets. These compounds were synthesized from 4-hydroxycoumarin (1) or naphthalen-1-ol via alkylation and Reformatsky-type
在寻找血小板聚集抑制剂时,合成了某些香豆素衍生物并评估了其对凝血酶(Thr)-,花生四烯酸(AA)-,胶原蛋白(Col)-和血小板活化因子(PAF)-的抗血小板活性。在洗涤的兔血小板中诱导聚集。这些化合物是由4-羟基香豆素(1)或萘-1-醇经烷基化和Reformatsky型缩合反应合成的(图1-3)。其中,显示了4-[((2,3,4,5-四氢-4-亚甲基-5-氧代-2-苯基呋喃-2-基)甲氧基] -2 H -1-苯并吡喃-2-酮(6b)IC 50对AA和PAF诱导的聚集产生有效的抗血小板作用值分别为8.21和103.67m̈M(见表1和2)。通过在内酯环的2-苯基上引入适当的取代基,可以进一步提高6b对PAF诱导的聚集的抗血小板效力。