Losartan → Losartan potassium salt

Beteiligte Stoffe

Reaktionsschritte

To 40.81 g losartan of Example 1 in 110 ml i-propanol was added 10.86 g of potassium t-butanolate a temperature between 10° C. and 25° C. The reaction mixture clarified. A dense white precipitate was formed when 150 ml of n-heptane was added and stirred at room temperature for 1 hour. It was filtered and washed with 75 ml n-heptane, dried at 50° C. C in vacuo overnight to yield 43.25 g of losartan potassium.

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