ChemicalBook CAS DataBase List Pantoprazole Sodium

Pantoprazole Sodium synthesis

7synthesis methods

Product Name:Pantoprazole Sodium
CAS Number:138786-67-1
Molecular formula:C16H14F2N3NaO4S
Molecular Weight:405.35

102625-70-7
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$28.00/250mg

138786-67-1
453 suppliers
$19.80/5mg

Yield:138786-67-1 95%

Reaction Conditions:

with sodium hydroxide in water;acetonitrile at 20;

Steps:

14 Example 14

Pantoprazole (5 g, 25.6 mmol) and 47% NaOH (1 eq.) are added to acetonitrile (25ml) and stirred at room temperature. After 3 h, the mixture becomes clear, and crystals beginto form. The mixture is allowed to stand overnight. The crystals are filtered and dried at50°C under 10 mm Hg vacuum. The crystals are determined to be the sesquihydrate form ofpantoprazole sodium by PXRD and are found to have a water content of 7.0% by Karl Fisheranalysis. Yield: 95%.

References:

WO2004/111029,2004,A2 Location in patent:Page 24