Process for the preparation of pure gabapentin “Form...

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof

Reexamination Certificate

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Reexamination Certificate

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07151193

ABSTRACT:
Pure gabapentin form II can be directly obtained adding the solution of the corresponding hydrochloride in dry ethanol (from which the inorganic salts have been filtered off) with a tertiary amine and a small amount of water.

REFERENCES:
patent: 6255526 (2001-07-01), Pesachovich et al.
Grant et al , Chemcial Dictionary, 1987, p. 220.

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