Pharmacologie anti inflammatoires non steroidiens

Shortly after Merck initiated research into the reducing the severity and likelihood of CINV, researchers discovered that aprepitant is effective in prevention. Researchers worked on coming up with a process to create aprepitant, and within a short period they came up with effective synthesis of the substance. This original synthesis was deemed to be workable and proved to be a crucial step in achieving commercialization; however, Merck decided that the process was not environmentally sustainable. This was due to the original synthesis requiring six steps, many of which needed dangerous chemicals such as sodium cyanide , dimethyltitanocene, and gaseous ammonia. In addition to this, for the process to be effective cryogenic temperatures were needed for some of the steps and other steps produced hazardous byproducts such as methane and magnesium chloride . [17] The environmental concerns of the synthesis of aprepitant became so great that Merck research team decided to withdraw the drug from clinical trials and attempt to create a different synthesis of aprepitant. [18]

Pharmacologie anti inflammatoires non steroidiens

pharmacologie anti inflammatoires non steroidiens

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