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An Improved Process For The Preparaton Of 5,6 Dihydro 4 H 4(s) Ethylamino 6(s) Methylthieno [2,3 B] Thiopyran 2 Sulfonamide 7,7 Dioxide Hydrochloride
Abstract: The present invention relates to resolution of (cis,trans) 5,6 -dihydro -4H-4-ethylamino-6-methylthieno[2,3-b] thiopyran-2-sulfonamide-7,7 -dioxide using dibenzoyl-L-tartaric acid monohydrate or di-p-toluoyl-L-tartaric acid monohydrate as a chiral resolving agent in presence of methanol to obtain hemitartarate salt of 5,6-dihydro-4H-4(S)-ethylamino-6(S) methylthieno [2,3-b] thiopyran-2-sulfonamide -7,7 -dioxide with de of > 95% followed by purification using methanol to obtain hemitartarate salt with de of >99%, Chemical purity >99.5% with cis isomer content of <0.1% and further converting into its pharmaceutically acceptable salts, preferably hydrochloride salt.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
09 July 2004
Publication Number
08/2007
Publication Type
INA
Invention Field
CHEMICAL
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2011-06-14
Renewal Date
Applicants
FDC LIMITED
B-8 MIDC INDUSTRIAL ESTATE, WALUJ - 431 136,
Inventors
1. CHANDAVARKAR ANAND MOHAN
FDC LIMITED, B-8 MIDC INDUSTRIAL ESTATE, WALUJ-431 136,
2. BAPAT RAJARAM UDAY
FDC LIMITED, B-8 MIDC INDUSTRIAL ESTATE, WALUJ-431 136,
3. BADE ANAND ATUL
FDC LIMITED, B-8 MIDC INDUSTRIAL ESTATE, WALUJ-431 136,
4. CHAVAN ANAND PANDURANG
FDC LIMITED, B-8 MIDC INDUSTRIAL ESTATE, WALUJ-431 136,
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 741-MUM-2004-ABSTRACT(6-7-2005).pdf | 2018-08-09 |
| 1 | 741-MUM-2004-CORRESPONDENCE(10-12-2008).pdf | 2008-12-10 |
| 2 | 741-MUM-2004-ABSTRACT(9-7-2004).pdf | 2018-08-09 |
| 2 | 741-MUM-2004_EXAMREPORT.pdf | 2018-08-09 |
| 3 | 741-MUM-2004-REPLY TO EXAMINATION REPORT(7-2-2011).pdf | 2018-08-09 |
| 3 | 741-MUM-2004-ABSTRACT(GRANTED)-(14-6-2011).pdf | 2018-08-09 |
| 4 | 741-MUM-2004-OTHER DOCUMENT(7-2-2011).pdf | 2018-08-09 |
| 4 | 741-MUM-2004-CANCELLED PAGES(7-2-2011).pdf | 2018-08-09 |
| 5 | 741-MUM-2004-FORM PCT-IPEA-409(7-2-2011).pdf | 2018-08-09 |
| 5 | 741-MUM-2004-CLAIMS(6-7-2005).pdf | 2018-08-09 |
| 6 | 741-MUM-2004-FORM 5(9-7-2004).pdf | 2018-08-09 |
| 6 | 741-MUM-2004-CLAIMS(AMENDED)-(7-2-2011).pdf | 2018-08-09 |
| 7 | 741-MUM-2004-FORM 5(7-2-2011).pdf | 2018-08-09 |
| 7 | 741-MUM-2004-CLAIMS(GRANTED)-(14-6-2011).pdf | 2018-08-09 |
| 8 | 741-MUM-2004-FORM 5(23-8-2004).pdf | 2018-08-09 |
| 8 | 741-MUM-2004-CLAIMS(MARKED COPY)-(7-2-2011).pdf | 2018-08-09 |
| 9 | 741-MUM-2004-CORRESPONDENCE 30-6-2008.pdf | 2018-08-09 |
| 9 | 741-MUM-2004-FORM 4(31-7-2013).pdf | 2018-08-09 |
| 10 | 741-MUM-2004-CORRESPONDENCE(1-11-2010).pdf | 2018-08-09 |
| 10 | 741-MUM-2004-FORM 3(9-7-2004).pdf | 2018-08-09 |
| 11 | 741-MUM-2004-CORRESPONDENCE(27-6-2008).pdf | 2018-08-09 |
| 11 | 741-MUM-2004-FORM 3(7-2-2011).pdf | 2018-08-09 |
| 12 | 741-MUM-2004-CORRESPONDENCE(7-2-2011).pdf | 2018-08-09 |
| 12 | 741-MUM-2004-FORM 3(6-7-2005).pdf | 2018-08-09 |
| 13 | 741-MUM-2004-CORRESPONDENCE(IPO)-(23-6-2011).pdf | 2018-08-09 |
| 13 | 741-MUM-2004-FORM 3(23-8-2004).pdf | 2018-08-09 |
| 14 | 741-MUM-2004-CORRESPONDENCE(RENEWAL PAYMENT LETTER)-(31-7-2013).pdf | 2018-08-09 |
| 14 | 741-MUM-2004-FORM 3(1-11-2010).pdf | 2018-08-09 |
| 15 | 741-MUM-2004-DESCRIPTION(COMPLETE)-(6-7-2005).pdf | 2018-08-09 |
| 15 | 741-MUM-2004-FORM 26(7-2-2011).pdf | 2018-08-09 |
| 16 | 741-MUM-2004-DESCRIPTION(GRANTED)-(14-6-2011).pdf | 2018-08-09 |
| 16 | 741-MUM-2004-FORM 26(23-9-2005).pdf | 2018-08-09 |
| 17 | 741-MUM-2004-FORM 2(TITLE PAGE)-(PROVISIONAL)-(9-7-2004).pdf | 2018-08-09 |
| 17 | 741-MUM-2004-DESCRIPTION(PROVISIONAL)-(9-7-2004).pdf | 2018-08-09 |
| 18 | 741-MUM-2004-FORM 1(23-8-2004).pdf | 2018-08-09 |
| 18 | 741-MUM-2004-FORM 2(TITLE PAGE)-(GRANTED)-(14-6-2011).pdf | 2018-08-09 |
| 19 | 741-MUM-2004-FORM 1(23-9-2005).pdf | 2018-08-09 |
| 19 | 741-MUM-2004-FORM 2(TITLE PAGE)-(COMPLETE)-(6-7-2005).pdf | 2018-08-09 |
| 20 | 741-MUM-2004-FORM 1(6-7-2005).pdf | 2018-08-09 |
| 20 | 741-MUM-2004-FORM 2(TITLE PAGE)-(AMENDED)-(7-2-2011).pdf | 2018-08-09 |
| 21 | 741-MUM-2004-FORM 1(7-2-2011).pdf | 2018-08-09 |
| 21 | 741-MUM-2004-FORM 2(TITLE PAGE)-(7-2-2011).pdf | 2018-08-09 |
| 22 | 741-MUM-2004-FORM 1(9-7-2004).pdf | 2018-08-09 |
| 22 | 741-MUM-2004-FORM 2(PROVISIONAL)-(9-7-2004).pdf | 2018-08-09 |
| 23 | 741-mum-2004-form 13(7-2-2011).pdf | 2018-08-09 |
| 23 | 741-MUM-2004-FORM 2(GRANTED)-(14-6-2011).pdf | 2018-08-09 |
| 24 | 741-MUM-2004-FORM 2(COMPLETE)-(6-7-2005).pdf | 2018-08-09 |
| 24 | 741-MUM-2004-FORM 18 30-6-2008.pdf | 2018-08-09 |
| 25 | 741-MUM-2004-FORM 18 30-6-2008.pdf | 2018-08-09 |
| 25 | 741-MUM-2004-FORM 2(COMPLETE)-(6-7-2005).pdf | 2018-08-09 |
| 26 | 741-mum-2004-form 13(7-2-2011).pdf | 2018-08-09 |
| 26 | 741-MUM-2004-FORM 2(GRANTED)-(14-6-2011).pdf | 2018-08-09 |
| 27 | 741-MUM-2004-FORM 1(9-7-2004).pdf | 2018-08-09 |
| 27 | 741-MUM-2004-FORM 2(PROVISIONAL)-(9-7-2004).pdf | 2018-08-09 |
| 28 | 741-MUM-2004-FORM 1(7-2-2011).pdf | 2018-08-09 |
| 28 | 741-MUM-2004-FORM 2(TITLE PAGE)-(7-2-2011).pdf | 2018-08-09 |
| 29 | 741-MUM-2004-FORM 1(6-7-2005).pdf | 2018-08-09 |
| 29 | 741-MUM-2004-FORM 2(TITLE PAGE)-(AMENDED)-(7-2-2011).pdf | 2018-08-09 |
| 30 | 741-MUM-2004-FORM 1(23-9-2005).pdf | 2018-08-09 |
| 30 | 741-MUM-2004-FORM 2(TITLE PAGE)-(COMPLETE)-(6-7-2005).pdf | 2018-08-09 |
| 31 | 741-MUM-2004-FORM 1(23-8-2004).pdf | 2018-08-09 |
| 31 | 741-MUM-2004-FORM 2(TITLE PAGE)-(GRANTED)-(14-6-2011).pdf | 2018-08-09 |
| 32 | 741-MUM-2004-DESCRIPTION(PROVISIONAL)-(9-7-2004).pdf | 2018-08-09 |
| 32 | 741-MUM-2004-FORM 2(TITLE PAGE)-(PROVISIONAL)-(9-7-2004).pdf | 2018-08-09 |
| 33 | 741-MUM-2004-DESCRIPTION(GRANTED)-(14-6-2011).pdf | 2018-08-09 |
| 33 | 741-MUM-2004-FORM 26(23-9-2005).pdf | 2018-08-09 |
| 34 | 741-MUM-2004-DESCRIPTION(COMPLETE)-(6-7-2005).pdf | 2018-08-09 |
| 34 | 741-MUM-2004-FORM 26(7-2-2011).pdf | 2018-08-09 |
| 35 | 741-MUM-2004-CORRESPONDENCE(RENEWAL PAYMENT LETTER)-(31-7-2013).pdf | 2018-08-09 |
| 35 | 741-MUM-2004-FORM 3(1-11-2010).pdf | 2018-08-09 |
| 36 | 741-MUM-2004-FORM 3(23-8-2004).pdf | 2018-08-09 |
| 36 | 741-MUM-2004-CORRESPONDENCE(IPO)-(23-6-2011).pdf | 2018-08-09 |
| 37 | 741-MUM-2004-CORRESPONDENCE(7-2-2011).pdf | 2018-08-09 |
| 37 | 741-MUM-2004-FORM 3(6-7-2005).pdf | 2018-08-09 |
| 38 | 741-MUM-2004-CORRESPONDENCE(27-6-2008).pdf | 2018-08-09 |
| 38 | 741-MUM-2004-FORM 3(7-2-2011).pdf | 2018-08-09 |
| 39 | 741-MUM-2004-CORRESPONDENCE(1-11-2010).pdf | 2018-08-09 |
| 39 | 741-MUM-2004-FORM 3(9-7-2004).pdf | 2018-08-09 |
| 40 | 741-MUM-2004-CORRESPONDENCE 30-6-2008.pdf | 2018-08-09 |
| 40 | 741-MUM-2004-FORM 4(31-7-2013).pdf | 2018-08-09 |
| 41 | 741-MUM-2004-CLAIMS(MARKED COPY)-(7-2-2011).pdf | 2018-08-09 |
| 41 | 741-MUM-2004-FORM 5(23-8-2004).pdf | 2018-08-09 |
| 42 | 741-MUM-2004-FORM 5(7-2-2011).pdf | 2018-08-09 |
| 42 | 741-MUM-2004-CLAIMS(GRANTED)-(14-6-2011).pdf | 2018-08-09 |
| 43 | 741-MUM-2004-FORM 5(9-7-2004).pdf | 2018-08-09 |
| 43 | 741-MUM-2004-CLAIMS(AMENDED)-(7-2-2011).pdf | 2018-08-09 |
| 44 | 741-MUM-2004-FORM PCT-IPEA-409(7-2-2011).pdf | 2018-08-09 |
| 44 | 741-MUM-2004-CLAIMS(6-7-2005).pdf | 2018-08-09 |
| 45 | 741-MUM-2004-OTHER DOCUMENT(7-2-2011).pdf | 2018-08-09 |
| 45 | 741-MUM-2004-CANCELLED PAGES(7-2-2011).pdf | 2018-08-09 |
| 46 | 741-MUM-2004-REPLY TO EXAMINATION REPORT(7-2-2011).pdf | 2018-08-09 |
| 46 | 741-MUM-2004-ABSTRACT(GRANTED)-(14-6-2011).pdf | 2018-08-09 |
| 47 | 741-MUM-2004-ABSTRACT(9-7-2004).pdf | 2018-08-09 |
| 47 | 741-MUM-2004_EXAMREPORT.pdf | 2018-08-09 |
| 48 | 741-MUM-2004-ABSTRACT(6-7-2005).pdf | 2018-08-09 |
| 48 | 741-MUM-2004-CORRESPONDENCE(10-12-2008).pdf | 2008-12-10 |