申请人:Shionogi & Co., Ltd.
公开号:US03940403A1
公开(公告)日:1976-02-24
Substituted acetic acid derivatives represented by the formula: ##SPC1## Wherein X, X', X", Y, Y' and Y" each represents a hydrogen atom, an alkyl group of 1 to 8 carbon atoms, an alkoxy group of 1 to 8 carbon atoms, a hydroxy group, an acyl group, an acylamino group, an acyloxy group, an amino group, a cyano group, a nitro group, an alkoxycarbonyl group of 2 to 9 carbon atoms, an alkoxycarbonylalkyl group of 3 to 10 carbon atoms, an alkoxycarbonylamino group of 2 to 9 carbon atoms, a trifluoromethyl group, a halogen atom, a carboxy group, or a carbamoyl group, two of X, X' and X", or two of Y, Y' and Y" are optionally combined to form an alicyclic ring of 5 to 7 carbon atoms or a benzene ring, A represents an oxygen atom or a sulfur atom, R and R.sub.1 each represents a hydrogen atom or a lower alkyl group of 1 to 4 carbon atoms and Q represents the optional presence of an oxygen atom, or their alkali metal or alkali earth metal salts, being useful as anti-inflammatory, anti-rheumatic, analgesic or anti-pyretic agents, are prepared essentially by the Arndt-Eistert reaction.
本发明涉及一种由下式表示的乙酸衍生物代替物:##SPC1##其中X、X'、X"、Y、Y'和Y"分别表示氢原子、1至8个碳原子的烷基、1至8个碳原子的烷氧基、羟基、酰基、酰胺基、酰氧基、氨基、氰基、硝基、2至9个碳原子的烷氧羰基、3至10个碳原子的烷氧羰基烷基、2至9个碳原子的烷氧羰基氨基、三氟甲基基团、卤素原子、羧基或氨基甲酰基,X、X'和X"中的两个或Y、Y'和Y"中的两个可选地组合成5至7个碳原子的脂环环或苯环,A表示氧原子或硫原子,R和R.sub.1分别表示氢原子或1至4个碳原子的低烷基,Q表示可选存在氧原子,或它们的碱金属或碱土金属盐。本发明的制备方法基本上是通过Arndt-Eistert反应制备的,它们可用作抗炎、抗风湿、镇痛或退烧剂。