EP 1636163 A1 20060322 - PROCESS FOR THE PREPARATION OF GABAPENTIN
Title (en)
PROCESS FOR THE PREPARATION OF GABAPENTIN
Title (de)
VERFAHREN ZUR HERSTELLUNG VON GABAPENTIN
Title (fr)
PROCEDE DE PREPARATION DE GABAPENTINE
Publication
Application
Priority
- IN 0300246 W 20030721
- IN 416CH2003 A 20030519
Abstract (en)
[origin: WO2004101489A1] The present invention relates to the process for the preparation of anhydrous Gabapentin of pharmaceutical grade from the Gabapentin acid addition salts. The process consists of neutralizing the said acid addition salts with an organic base in water to get an aqueous solution comprising of Gabapentin and amine acid addition salt dissolved in water. The process further comprises of a method to separate the Gabapentin and the amine acid addition salt from such an aqueous solution and to recover Gabapentin as an anhydrous Gabapentin form II.
IPC 1-7
IPC 8 full level
C07C 227/16 (2006.01); C07C 229/28 (2006.01)
CPC (source: EP)
C07C 227/16 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004101489 A1 20041125; AU 2003259544 A1 20041203; EP 1636163 A1 20060322; EP 1636163 A4 20060809
DOCDB simple family (application)
IN 0300246 W 20030721; AU 2003259544 A 20030721; EP 03816962 A 20030721