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Title:
IMPROVED PROCESS FOR PREPARING (S)-2-AMINO-4, 5, 6, 7-TETRAHYDRO-6-(PROPYLAMINO)BENZOTHIAZOLE AND ITS DHTYDROCHLORIDE MONOHYDRATE
Document Type and Number:
WIPO Patent Application WO/2011/021214
Kind Code:
A3
Abstract:
An improved process for preparing (S)-2-amino-4, 5, 6, 7-tetrahydro-6-(propylamino) benzothiazole (pramipexole) and its dihydrochloride monohydrate is provided. Pramipexole dihydrochloride is the compound represented by the following structural formula-1a.

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Inventors:
SATYANARAYANA REDDY MANNE (IN)
ESWARAIAH SAJJA (IN)
SAHADEVA REDDY MARAMREDDY (IN)
Application Number:
PCT/IN2010/000521
Publication Date:
April 28, 2011
Filing Date:
August 05, 2010
Export Citation:
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Assignee:
MSN LAB LTD (IN)
SATYANARAYANA REDDY MANNE (IN)
ESWARAIAH SAJJA (IN)
SAHADEVA REDDY MARAMREDDY (IN)
International Classes:
C07D277/82
Domestic Patent References:
WO2006012276A12006-02-02
WO2005092871A22005-10-06
Foreign References:
CN1834092A2006-09-20
CN101429173A2009-05-13
GB2394951A2004-05-12
IN1022MU2006A
Attorney, Agent or Firm:
SATYANARAYANA REDDY, Manne (Rudraram ,,Patancheru ,Medak, Hyderabad 9 Andhra Pradesh, IN)
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