overview | oseltamivir impurity e is a common impurity in the production of oseltamivir phosphate. The chemical name of oseltamivir phosphate is (3R,4R,5S)-4-acetamido-5-amino-3-(1-ethylpropoxy)-1-cyclohexenecarboxylic acid ethyl ester, It is considered to be the most effective and specific influenza treatment drug at present, which can greatly reduce the occurrence of complications (mainly trachea and bronchitis, pneumonia, pharyngitis, etc.) and the use of antibiotics, therefore, it is currently one of the most commonly used drugs for the treatment of influenza, and it is also recognized as one of the most effective drugs against avian influenza and virus A. It was approved by the United States in 1999 and listed in China in July 2004. |