Title:
SITAGLIPTIN, SALTS AND POLYMORPHS THEREOF
Document Type and Number:
WIPO Patent Application WO/2012/025944
Kind Code:
A3
Abstract:
The present invention relates to an improved process for preparation of Sitagliptin or pharmaceutically acceptable salts thereof. The present invention further relates to novel polymorphs of Sitagliptin salts and process for preparation thereof.
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Inventors:
SATHE DHANANJAY GOVIND (IN)
DAMLE SUBHASH VISHWANATH (IN)
AROTE NITIN DNYANESHWAR (IN)
AMBRE RAKESH RAMCHANDRA (IN)
SAWANT KAMLESH DIGAMBAR (IN)
NAIK TUSHAR ANIL (IN)
DAMLE SUBHASH VISHWANATH (IN)
AROTE NITIN DNYANESHWAR (IN)
AMBRE RAKESH RAMCHANDRA (IN)
SAWANT KAMLESH DIGAMBAR (IN)
NAIK TUSHAR ANIL (IN)
Application Number:
PCT/IN2011/000582
Publication Date:
March 14, 2013
Filing Date:
August 26, 2011
Export Citation:
Assignee:
USV LTD (IN)
SATHE DHANANJAY GOVIND (IN)
DAMLE SUBHASH VISHWANATH (IN)
AROTE NITIN DNYANESHWAR (IN)
AMBRE RAKESH RAMCHANDRA (IN)
SAWANT KAMLESH DIGAMBAR (IN)
NAIK TUSHAR ANIL (IN)
SATHE DHANANJAY GOVIND (IN)
DAMLE SUBHASH VISHWANATH (IN)
AROTE NITIN DNYANESHWAR (IN)
AMBRE RAKESH RAMCHANDRA (IN)
SAWANT KAMLESH DIGAMBAR (IN)
NAIK TUSHAR ANIL (IN)
International Classes:
C07D487/04
Domestic Patent References:
| WO2004087650A2 | 2004-10-14 | |||
| WO2010000469A2 | 2010-01-07 |
Other References:
HANSEN KARL B ET AL: "First Generation Process for the Preparation of the DPP-IV Inhibitor Sitagliptin", ORGANIC PROCESS RESEARCH AND DEVELOPMENT, AMERICAN CHEMICAL SOCIETY, US, vol. 9, no. 5, 1 September 2005 (2005-09-01), pages 634 - 639, XP009142089, ISSN: 1083-6160, [retrieved on 20050831], DOI: 10.1021/OP0500786
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