| Title of Invention | AN IMPROVED PROCESS FOR PREPARATION OF DIHYDROCHLORIDE OF LEVO-CETIRIZINE |
|---|---|
| Abstract | The present invention discloses an improved process for preparation dihydro chloride of levo-[2-[4-[4-chlorophenyl)-phenyl methyl]ethoxy] acetic acid which is generally known as levocetirizine dihydrochloride. More particularly, this invention discloses the resolution of 1-[(4-chlorophenyl)phenyl methyl] piperazine or 4-chloro benzhydryl piperazine by using Di-benzoyl-D-tartaric acid as a resolving agent in an early step of the process. |
| Full Text |
|---|
501-mum-2004-abstract(30-4-2004).pdf
501-mum-2004-abstract(granted)-(13-1-2011).pdf
501-mum-2004-cancelled pages(9-7-2009).pdf
501-mum-2004-claims(30-4-2004).pdf
501-mum-2004-claims(granted)-(13-1-2011).pdf
501-MUM-2004-CORRESPONDENCE(2-2-2009).pdf
501-mum-2004-correspondence(29-1-2007).pdf
501-mum-2004-correspondence(4-5-2004).pdf
501-mum-2004-correspondence(ipo)-(14-1-2011).pdf
501-mum-2004-correspondence(ipo)-(18-2-2009).pdf
501-mum-2004-correspondence(ipo)-(26-5-2009).pdf
501-mum-2004-description(complete)-(30-4-2004).pdf
501-mum-2004-description(granted)-(13-1-2011).pdf
501-mum-2004-first examination report(26-5-2009).pdf
501-mum-2004-form 1(30-4-2004).pdf
501-mum-2004-form 1(5-5-2004).pdf
501-mum-2004-form 18(29-1-2007).pdf
501-mum-2004-form 2(30-4-2004).pdf
501-mum-2004-form 2(granted)-(13-1-2011).pdf
501-mum-2004-form 2(title page)-(30-4-2004).pdf
501-mum-2004-form 2(title page)-(granted)-(13-1-2011).pdf
501-mum-2004-form 26(30-4-2004).pdf
501-mum-2004-form 3(30-4-2004).pdf
501-mum-2004-form 3(9-7-2009).pdf
501-mum-2004-reply to first examination report(9-7-2009).pdf
501-mum-2004-specification(amended)-(9-7-2009).pdf
| Patent Number | 245334 | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Indian Patent Application Number | 501/MUM/2004 | |||||||||||||||
| PG Journal Number | 03/2011 | |||||||||||||||
| Publication Date | 21-Jan-2011 | |||||||||||||||
| Grant Date | 13-Jan-2011 | |||||||||||||||
| Date of Filing | 30-Apr-2004 | |||||||||||||||
| Name of Patentee | M/S. AARTI DRUGS LIMITED | |||||||||||||||
| Applicant Address | 74,MATRU SMRUTI, 2nd FLOOR, ROAD NO.4, SCHEME NO.6, SION(EAST), MUMBAI | |||||||||||||||
Inventors:
|
||||||||||||||||
| PCT International Classification Number | A61K31/495 | |||||||||||||||
| PCT International Application Number | N/A | |||||||||||||||
| PCT International Filing date | ||||||||||||||||
PCT Conventions:
|
||||||||||||||||