Heterocyclic acids and esters useful as inhibitors of mammalian blood platelet aggregation characterized by Formula I or II are disclosed. ##STR1## Formula I compounds are those wherein n is 6-9, R is hydrogen, lower alkyl or an alkali metal ion, and HET.sub.1 is the heterocyclic radical 5-(diphenylmethyl)-2H-tetrazol-2-yl. Formula II compounds are those wherein R.sub.1 is hydrogen, lower alkyl or an alkali metal ion, and the radical --OCH.sub.2 CO.sub.2 R is attached in the 3 or 4 ring position; and HET.sub.2 is the heterocyclic radical 5-(diphenylmethyl)-2H-tetrazol-2-yl.
本文披露了具有式I或II特征的杂
环酸和酯,可用作哺乳动物血小板聚集
抑制剂。 ##STR1## 其中,式I化合物中n为6-9,R为氢、低碳烷基或碱
金属离子,HET.sub.1为杂环基5-(二苯甲基)-2H-
四唑-2-基。式II化合物中,R.sub.1为氢、低碳烷基或碱
金属离子,基团--OCH.sub.2 CO.sub.2 R连接在3或4环位上,HET.sub.2为杂环基5-(二苯甲基)-2H-
四唑-2-基。