| Title of Invention | PROCESS FOR THE PREPARATION OF CRYSTALLINE FORM I OF 2-METHYL-4-(4-METHYL-1-PIPERAZINYL)-10H-THIENO[2,3-b][1,5]BENZODIAZEPINE |
|---|---|
| Abstract | A process for the preparation of the crystalline Form I of 2-methyl-4-(4-methyl-1-piperazinyl)-10H-thieno[2,3-b][1,5] benzodiazepine, having stable colour upon storage at ambient conditions, comprising at least two repetitive steps of crystallization from one or more organic solvent by dissolving 2-methyl-4-(4-methyl-1-piperazinyl)-10H-thieno[2,3-b][21,5]benzodiazepine in said solvent and allowing crystallization to occur, where in at least one step the solution is purified by treating with a solid adsorbent material and filtering; and wherein in the last step the crystalline material is subjected to drying. |
| Full Text | N/A |
|---|
1211-mum-2001-claims(granted)-(1-9-2005).doc
1211-mum-2001-claims(granted)-(1-9-2005).pdf
1211-mum-2001-correspondence(ipo)-(7-1-2009).pdf
1211-mum-2001-correspondence1(16-12-2005).pdf
1211-mum-2001-correspondence2(14-1-2008).pdf
1211-mum-2001-correspondence3(5-7-2007).pdf
1211-mum-2001-form 1(24-12-2001).pdf
1211-mum-2001-form 1(9-1-2002).pdf
1211-mum-2001-form 19(14-12-2004).pdf
1211-mum-2001-form 2(granted)-(1-9-2005).doc
1211-mum-2001-form 2(granted)-(1-9-2005).pdf
1211-mum-2001-form 3(21-3-2003).pdf
1211-mum-2001-form-pct-ipea-409(24-12-2001).pdf
1211-mum-2001-form-pct-isa-210(24-12-2001).pdf
1211-mum-2001-other documents(8-8-2007).pdf
| Patent Number | 227352 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Indian Patent Application Number | 1211/MUM/2001 | ||||||||||||
| PG Journal Number | 10/2009 | ||||||||||||
| Publication Date | 06-Mar-2009 | ||||||||||||
| Grant Date | 07-Jan-2009 | ||||||||||||
| Date of Filing | 24-Dec-2001 | ||||||||||||
| Name of Patentee | SUN PHARMACEUTICAL INDUSTRIES LTD. | ||||||||||||
| Applicant Address | ACME PLAZA, ANDHERI-KURLA ROAD, ANDHERI(E), MUMBAI 400059, | ||||||||||||
Inventors:
|
|||||||||||||
| PCT International Classification Number | A61K31/470 | ||||||||||||
| PCT International Application Number | N/A | ||||||||||||
| PCT International Filing date | |||||||||||||
PCT Conventions:
|
|||||||||||||