platelets. Results are compared to aci-reductones belonging to the 4-aryl- and 4-spiroalkyl-2-hydroxytetronic acid systems (4,5a,b). Redox potentials for all aci-reductones were determined with cyclic voltammetry. It would appear that the 4-aryl-2-hydroxytetronic acids represent leads for further study as antiatherosclerotic drugs owing to their favorable antilipidemic and antiaggregatory properties whereas
合成属于6-或7-单或双取代的3,4-二羟基-2H-1-苯并
吡喃-2-酮(6-10)及其顺式和反式aci还原酮的合成方法描述了-4a,5、6、7、8、8a-六氢非对映异构体(11、12)。使用Meldrum's synthon(2,2-二甲基-1,3-
二恶烷-4,6-dione,49)可方便地制备六氢苯并
吡喃酮aci-还原酮。在
胆固醇喂养的大鼠模型中评估了其中某些物质的抗血脂活性,并研究了所有类似物抑制人血小板聚集的能力。将结果与属于4-芳基-和4-螺烷基-2-羟基tetronic酸体系的aci-还原酮进行比较(4,5a,b)。用循环伏安法测定所有aci还原酮的氧化还原电位。