Process for the preparation of solifenacin succinate
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United States of America Patent
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Jul 8, 2014
Grant Date -
May 16, 2013
app pub date -
Jun 20, 2011
filing date -
Jun 28, 2010
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Abstract
The present invention relates to a process for the preparation of Solifenacin succinate by condensing a compound of formula (IVb) with (RS)-3-quinuclidinol, wherein, R represents methyl, ethyl, isopropyl; to produce a diastereomeric mixture of (1S)-3,4-dihydro-1-phenyl-2(1H)-isoquinolinecarboxylic acid (3RS)-1-azabicyclo[2.2.2]oct-3-yl ester, which is treated with succinic acid in a solvent or mixture of solvents to produce optically pure Solifenacin succinate, Formula (X).
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