bis-(4-hydroxy-2H-1-benzopyran-2-one) (7) and 3,3'-(3,5-dimethoxy-4-hydroxyphenylmethylene)bis-(4-hydroxy-2H-1-benzopyran-2-one ) (9) confirmed the structure of these compounds. A comparative pharmacological study of the anticoagulant effect with respect to Warfarin showed that the synthesized compounds have different anticoagulant activities. The most prospective compound is 3,3'-(4-chlorophenylm
合成了二十种
4-羟基
香豆素衍
生物。其中五个是第一次描述。3,3'-(2,3,4-三
甲氧基苯基亚甲基)双-(
4-羟基-2H-1-苯并
吡喃-2-酮)(7)和3,3'-(3的X射线晶体结构分析,(5-二甲氧基-
4-羟基苯基亚甲基)双-(
4-羟基-2H-1-苯并
吡喃-2-酮)(9)证实了这些化合物的结构。对
华法林抗凝作用的比较药理研究表明,合成的化合物具有不同的抗凝活性。最有前景的化合物是3,3'-(4-
氯苯基亚甲基)双-(
4-羟基-2H-1-苯并
吡喃-2-酮)(12),具有低毒性,非常好的吸收指数和剂量依赖性抗凝活性。