Pregabalin free of lactam and a process for preparation thereof

Details Pregabalin free of lactam and a process for preparation thereof Pregabalin free of lactam and a process for preparation thereof

2006-04-11

2009-02-10

Puttlitz, Karl J (Department: 1621)

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

Organic compounds

Carboxylic acids and salts thereof

Reexamination Certificate

active

07488846

ABSTRACT:
The present invention encompasses Pregabalin substantially free of Lactam and a process for obtaining Pregabalin substantially free of Lactam comprising extracting an acidic mixture containing a complex of Pregabalin with a strong mineral acid, with C3-8alcohol; and combining the organic phase with an organic base.

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