US2014275610A1PendingUtilityA1

Process for the preparation of fesoterodine or a salt thereof

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Assignee: DIPHARMA FRANCIS SRLPriority: Dec 9, 2010Filed: Jun 2, 2014Published: Sep 18, 2014
Est. expiryDec 9, 2030(~4.4 yrs left)· nominal 20-yr term from priority
Inventors:Marco ArticoEmanuele AttolinoPietro AllegriniGabriele Razzetti
C07C 213/06A61K 31/222C07C 217/62
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Abstract

A process for the preparation of (R)-2-(3-diisopropylamino-1-phenylpropyl)-4-(hydroxymethyl)-phenol isobutyrate (Fesoterodine) or a pharmaceutically acceptable salt thereof having low content in impurities.

Claims

exact text as granted — not AI-modified
1 . A pharmaceutical composition comprising a compound of formula (I) or a pharmaceutically acceptable salt thereof, 
       
         
           
           
               
               
           
         
         and an amount of a compound of formula (III) and/or (IV) and/or (V) 
       
       
         
           
           
               
               
           
         
         comprised between about 0.0001% to about 0.1%, for each of them.

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