📜尼美舒利置于水,Sodium Hydroxide体系中,用 甲醇 作为反应溶剂,化学反应 50.0H,反应生成 4-硝基-2-苯氧基苯胺 参考文献:HPLC Analysis Of A Syrup Containing Nimesulide And Its Hydrolytic Degradation Product 标题:HPLC Analysis Of A Syrup Containing Nimesulide And Its Hydrolytic Degradation Product 摘要:本文讨论了在糖浆中使用高效液相色谱(HPLC)结合254纳米紫外检测评估尼美舒利德,2-苯氧基-4-硝基苯胺(尼美舒利德的主要水解降解产物),对羟基苯甲酸甲酯和对羟基苯甲酸丙酯,最终是对4-羟基苯甲酸的药物配方.反相c18柱上采用甲醇和0.01 M二碱性磷酸铵(ρ R = 60:40,Ph 4.0)进行HPLC分析.通过使用标准品和含有上述化合物的药物制剂进行验证. DOI:10.2478/s11696-010-0001-2
专利号:US-4257942-A 优先权日:1977-10-06 标题:New water-insoluble azo dyes 发明人:DEFEO FRANCESCO; CIPOLLI ROBERTO 权利人:ACNA 摘要:The present invention relates to the synthesis of new dyes having the following general formula: wherein: D is the residue of a diazotizable component of the carbocyclic or heterocyclic series X is an ethylene group, optionally substituted by halogen-methyl, alkyl C1-C4, aryl, aralkyl or CH2OCO(HN)nR (wherein R and n have the meanings hereinafter defined); R is alkyl C1-C8 optionally substituted by halogen, CN,COOH; aryl optionally substituted by one or more atoms of halogen, alkyl C1-C4, alkoxyl C1-C4; alkoxyl C1-C4; alkoxyl C1-C8; Aryloxy; aralkoxy; cycloalkoxy; aralkyl; naphthyl optionally substituted by halogen; alkenyl C2-C8, optionally substituted by halogen, CN, COOH; R1 and R2, either like or unlike each other, may be alkyl C1-C4 optionally substituted by halogen or CN groups; aralkyl; R3 is H; halogen, alkyl C1-C4; alkoxyl C1-C4, optionally substituted. n is 0 or 1.