Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tamar Nidam0
Claude Singer0
Irena Veinberg0
Nina Finkelstein0
Anita Liberman0
Date of Patent
November 24, 2009
0Patent Application Number
110834850
Date Filed
March 18, 2005
0Patent Primary Examiner
Patent abstract
The present invention provides a method for preparing a substantially pure lansoprazole containing less than about 0.2% (wt/wt) impurities including sulfone/sulfide derivatives. The present invention also provides a process for recrystallizing lansoprazole to obtain a lansoprazole containing less than about 0.1% (wt/wt) water.
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