Syntheses and antiinflammatory activity of malonamic acid, malonamate and malonamide derivatives of some heterocyclic compounds.
作者:TOYOSHI KATAGI、MISAKO AOKI、MASAKO KASHIWAGI、KATSUYA OHATA、SHIGEKATSU KOHNO、TAMOTSU MURATA、TAKESHI INOI
DOI:10.1248/cpb.33.4878
日期:——
Malonamate, malonic acid and malonamide derivatives of heterocyclic compounds were synthesized as part of a search for new biologically active compounds, e. g., those having antiinflammatory activity. Malonamates (1-17) were prepared by the reaction of amines containing heterocycles with malonic acid monoethyl ester. Hydrolysis of the malonamates gave the malonamic acids (18-24) in good yields. Malonamides (25-43) were synthesized by condensing amines with N-substituted malonamic acids. The antiinflammatory activity of these compounds was examined against carrageenin-induced rat paw edema. N-[2-(6-Methoxy) benzothiazolyl] malonamic acid (23) and its ethyl ester (7) showed significant activity.
作为寻找新生物活性化合物(例如具有抗炎活性的化合物)的一部分,合成了异环化合物的丙二酸酯、丙二酸和丙二酰胺衍生物。通过将含异环的胺与丙二酸单乙酯反应制备了丙二酸酯(1-17)。丙二酸酯的水解得到丙二胺酸(18-24),产率良好。通过将胺与N取代的丙二胺酸缩合,合成了丙二胺(25-43)。这些化合物的抗炎活性在卡拉胶诱导的大鼠足部水肿中进行了测试。N-[2-(6-甲氧基)苯并噻唑基]丙二胺酸(23)及其乙基酯(7)显示出显著的活性。