Process for preparing lansoprazole

Details Process for preparing lansoprazole Process for preparing lansoprazole

2005-11-08

2010-02-16

Morris, Patricia L (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07662968

ABSTRACT:
The invention relates to a process for preparing lansoprazole. It is also directed to lansoprazole having a specific surface area and a pharmaceutical composition comprising lansoprazole.

REFERENCES:
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Vippagunta et al., “Crystalline Solid”, Advanced Drug Delivery Reviews 48 (2001) 3-26.
Guillory (in Brittain et al.), “Polymorphism, etc.,” NY: Marcel Dekker, Inc., 1999, 1-2, 183-226.
XP-002330686, Ahn, Heon Suk et al., Modification and purification method of crystalline form of lansoprazole, Database accession No. 2004:942454 Abstract.
XP-002330687, Aihara, Kiyoshi et al., Preparation of almost anhydrous lansoprazole from its solvate and/or hydrate, Database accession No. 2004:19893 Abstract.

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