申请人:Abic Ltd.
公开号:US03978072A1
公开(公告)日:1976-08-31
This invention relates to anti-inflammatory pyridone derivatives, particularly 2,6-dimethyl-1,4-dihydro-4-oxo-3,5 pyridine-dicarboxylates and derivatives thereof which have an anti-inflammatory action, as well as compositions therewith, use of these compounds for their anti-inflammatory effect, and production thereof. These 4-oxo pyridines of the present invention, refer to in the literature as 4-(1H)-pyridones are suitably prepared by reacting a 2,6-dimethyl-4-oxo 3,5 pyrone-dicarboxylate with an aniline in an acidic medium such as acetic acid.
本发明涉及抗炎吡啶酮衍生物,特别是2,6-二甲基-1,4-二氢-4-氧基-3,5-吡啶二羧酸酯及其衍生物,具有抗炎作用,以及与之配合的组合物,利用这些化合物的抗炎效果,以及其生产方法。本发明的这些4-氧代吡啶,通常被称为4-(1H)-吡啶酮,在酸性介质中,如乙酸中,通过将2,6-二甲基-4-氧代-3,5-吡酮二羧酸酯与苯胺反应而制备得到。