Validated HPLC and stability-indicating densitometric chromatographic methods for simultaneous determination of camylofin dihydrochloride and paracetamol in their binary mixture
作者:Sawsan A. Abdel Razeq、Israa A. Khalil、Samah A. Mohammd
DOI:10.1007/s13738-020-01953-8
日期:2020.10
sensitive, precise and selective HPLC and stability-indicating TLC methods were developed for the simultaneous determination of camylofin-2HCl and paracetamol. Forced acid, alkali and oxidative degradation of camylofin-2HCl were tried where complete degradation was achieved using 5 N HCl. HPLC method was developed to determine the mixture of the two drugs using Zorbax NH2 column and a mobile phase of 0
开发了两种准确,灵敏,精确和选择性的HPLC和指示稳定性的TLC方法,用于同时测定camylofin-2HCl和对乙酰氨基酚。尝试对camylofin-2HCl进行强酸,碱和氧化降解,其中使用5 N HCl可以完全降解。开发了HPLC方法以使用Zorbax NH 2确定两种药物的混合物色谱柱和0.5%三乙胺和pH 3.0的流动相,分别用0.1%磷酸和甲醇(70:30 v / v)进行调整,对camylofin-2HCl和对乙酰氨基酚的浓度范围分别为3–90和10–95 µg / mL .TLC方法使用氯仿-甲醇-丙酮-浓溶液从酸降解物和扑热息痛中分离出卡米洛芬。氨(8:2:2:0.1,按体积计)作为显影系统,并且在254 nm处对camylofin-2HCl的浓度范围为5–40 µg /条带,对乙酰氨基酚的浓度范围为0.1–0.5 µg /条带。根据ICH指南对两种方法进行了验证。两种方法的准确度在98
[EN] PRODRUGS OF SECONDARY AMINE COMPOUNDS<br/>[FR] PROMÉDICAMENTS DE COMPOSÉS AMINE SECONDAIRES
申请人:ALKERMES PHARMA IRELAND LTD
公开号:WO2013088255A1
公开(公告)日:2013-06-20
The present invention relates to compounds of Formula (I).
本发明涉及式(I)的化合物。
[EN] 4-SUBSTITUTED BENZIMIDAZOLES AND THEIR USE AS INHIBITORS OF GASTRIC SECRETION<br/>[FR] BENZIMIDAZOLES SUBSTITUES EN POSITION 4 ET LEUR UTILISATION EN TANT QU'INHIBITEURS DE LA SECRETION GASTRIQUE
申请人:ALTANA PHARMA AG
公开号:WO2004054984A1
公开(公告)日:2004-07-01
The invention relates to 6-substituted benzimidazoles of formula 1, in which X is O (oxygen) or NH and Y has either the meaning -CH2-Ar wherein Ar is a mono- or bicyclic aromatic residue, or Y denotes the group gp, formula (gp) wherein Z has the meaning -CHR8- or -CHR8-CHR9-. The compounds have gastric secretion inhibiting and excellent gastric and intestinal protective action properties.
The invention provides compounds of the formula (1), in which the substituents and symbols are as defined in the description. The compounds inhibit the secretion of gastric acid.
The invention relates to cyclic benzimidazoles of formula (1), (1) in which the substituents and symbols have the meanings indicated in the description. The compounds have gastric secretion inhibiting and excellent gastric and intestinal protective action properties.