2-Phenyl-1 (2H)-phthalazinone derivatives (4) were synthesized by the reactions of corresponding o-phthalaldehydic acids (5) with phenylhydrazine derivatives. The preparation of 5 was carried out by decarboxylation of keto-carboxylic acids (6) or hydroxylation of phthalides (8) via their bromo derivatives (9). The derivatives (4) were tested for inhibitory activity on platelet aggregation. None of them showed any appreciable effect on platelet aggregation induced by adenosine diphosphate. Several compounds (4l, 4m, 16a, and 16c), however, effectively inhibited platelet aggregation induced by arachidonic acid.
2-苯基-1(2H)-
酞嗪酮衍
生物(4)是通过相应的邻
酞醛酸(5)与苯基
肼衍
生物反应合成的。5的制备是通过
酮酸(6)的脱羧或
酞内酯(8)通过其
溴衍
生物(9)的羟化进行的。这些衍
生物(4)被测试了对血小板聚集的抑制活性。它们中没有任何一种对由
二磷酸腺苷诱导的血小板聚集显示出显著效果。然而,几种化合物(4l、4m、16a和16c)有效地抑制了由
花生四烯酸诱导的血小板聚集。