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An Improved Process For Producing N [3 (3 Cyanopyrazolo[1,5 A] Pyrimidin 7yl) Pheny1] N Ethylacetamide (Zaleplon)
Abstract: A process for producing Zaleplon comprising: (a)reacting N-[3-[3-arylamino)-1-oxo-2-propeny1)pheny1]-N-ethy1 acetamide with 3-amino-4-cyanopyrazole hydrochloride in aqueous acetic acid containing acids. (b)water in to the said acetic in the range of 10% to 90% and preferably between 30 to 60%; and (c)The temperature of reaction mixture ranging from 0(0)C-50(0)C preferably at temperature ranging between 25(0)-35(0)C.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
28 July 2004
Publication Number
09/2007
Publication Type
INA
Invention Field
CHEMICAL
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2011-03-23
Renewal Date
Applicants
CENTAUR CHEMICALS PRIVATE LIMITED
279, New Ashirwad No.5, Ram Mandir Road, Goregaon((W),MUMBAI-400 104,
Inventors
1. DR. ANIL MAHADEV NAIK
279, New Ashirwad No.5, Ram Mandir Road, Goregaon((W),MUMBAI-400 104,
2. DR. SHRIKANT DATTATRAYA SAWANT
Indian Nationals
3. MRS. SUPRIYA SAMAR DESAI
Indain Nationals
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 798-MUM-2004-CANCELLED PAGES(25-6-2010).pdf | 2018-08-09 |
| 1 | 798-MUM-2004-SPECIFICATION(AMENDED)-(17-11-2009).pdf | 2009-11-17 |
| 2 | 798-MUM-2004-CLAIMS(25-6-2009).pdf | 2018-08-09 |
| 2 | 798-MUM-2004-REPLY TO EXAMINATION REPORT(17-11-2009).pdf | 2009-11-17 |
| 3 | 798-MUM-2004-PETITION UNDER RULE 137(17-11-2009).pdf | 2009-11-17 |
| 3 | 798-MUM-2004-CLAIMS(28-7-2004).pdf | 2018-08-09 |
| 4 | 798-MUM-2004-FORM 2(TITLE PAGE)-(17-11-2009).pdf | 2009-11-17 |
| 4 | 798-MUM-2004-CLAIMS(AMENDED)-(25-6-2010).pdf | 2018-08-09 |
| 5 | 798-MUM-2004-FORM 1(17-11-2009).pdf | 2009-11-17 |
| 5 | 798-MUM-2004-CLAIMS(GRANTED)-(23-3-2011).pdf | 2018-08-09 |
| 6 | 798-MUM-2004-CLAIMS(MARKED COPY)-(1-10-2009).pdf | 2018-08-09 |
| 6 | 798-MUM-2004-CLAIMS(AMENDED)-(17-11-2009).pdf | 2009-11-17 |
| 7 | 798-MUM-2004_EXAMREPORT.pdf | 2018-08-09 |
| 7 | 798-MUM-2004-CLAIMS(MARKED COPY)-(25-6-2010).pdf | 2018-08-09 |
| 8 | 798-MUM-2004-WO INTERNATIONAL PUBLICATION REPORT(28-7-2004).pdf | 2018-08-09 |
| 8 | 798-MUM-2004-CORRESPONDENCE(1-10-2009).pdf | 2018-08-09 |
| 9 | 798-MUM-2004-CORRESPONDENCE(18-8-2007).pdf | 2018-08-09 |
| 9 | 798-MUM-2004-SPECIFICATION(AMENDED)-(25-6-2009).pdf | 2018-08-09 |
| 10 | 798-MUM-2004-CORRESPONDENCE(21-6-2010).pdf | 2018-08-09 |
| 10 | 798-MUM-2004-SPECIFICATION(AMENDED)-(1-10-2009).pdf | 2018-08-09 |
| 11 | 798-MUM-2004-CORRESPONDENCE(25-6-2009).pdf | 2018-08-09 |
| 11 | 798-MUM-2004-OTHER DOCUMENT(25-6-2009).pdf | 2018-08-09 |
| 12 | 798-MUM-2004-CORRESPONDENCE(25-6-2010).pdf | 2018-08-09 |
| 12 | 798-MUM-2004-FORM 3(26-8-2009).pdf | 2018-08-09 |
| 13 | 798-MUM-2004-CORRESPONDENCE(26-8-2009).pdf | 2018-08-09 |
| 13 | 798-MUM-2004-FORM 2(TITLE PAGE)-(GRANTED)-(23-3-2011).pdf | 2018-08-09 |
| 14 | 798-MUM-2004-CORRESPONDENCE(IPO)-(25-3-2011).pdf | 2018-08-09 |
| 14 | 798-MUM-2004-FORM 2(TITLE PAGE)-(28-7-2004).pdf | 2018-08-09 |
| 15 | 798-MUM-2004-CORRESPONDENCE(IPO)-(25-6-2009).pdf | 2018-08-09 |
| 15 | 798-MUM-2004-FORM 2(TITLE PAGE)-(26-8-2009).pdf | 2018-08-09 |
| 16 | 798-MUM-2004-DESCRIPTION(COMPLETE)-(25-6-2009).pdf | 2018-08-09 |
| 16 | 798-MUM-2004-FORM 2(GRANTED)-(23-3-2011).pdf | 2018-08-09 |
| 17 | 798-MUM-2004-FORM 2(COMPLETE)-(28-7-2004).pdf | 2018-08-09 |
| 17 | 798-MUM-2004-DESCRIPTION(GRANTED)-(23-3-2011).pdf | 2018-08-09 |
| 18 | 798-MUM-2004-DESCRIPTIONCOMPLETE)-(28-7-2004).pdf | 2018-08-09 |
| 18 | 798-MUM-2004-FORM 18(20-8-2007).pdf | 2018-08-09 |
| 19 | 798-MUM-2004-FORM 1(1-10-2009).pdf | 2018-08-09 |
| 19 | 798-MUM-2004-FORM 1(28-7-2004).pdf | 2018-08-09 |
| 20 | 798-MUM-2004-FORM 1(1-10-2009).pdf | 2018-08-09 |
| 20 | 798-MUM-2004-FORM 1(28-7-2004).pdf | 2018-08-09 |
| 21 | 798-MUM-2004-DESCRIPTIONCOMPLETE)-(28-7-2004).pdf | 2018-08-09 |
| 21 | 798-MUM-2004-FORM 18(20-8-2007).pdf | 2018-08-09 |
| 22 | 798-MUM-2004-DESCRIPTION(GRANTED)-(23-3-2011).pdf | 2018-08-09 |
| 22 | 798-MUM-2004-FORM 2(COMPLETE)-(28-7-2004).pdf | 2018-08-09 |
| 23 | 798-MUM-2004-DESCRIPTION(COMPLETE)-(25-6-2009).pdf | 2018-08-09 |
| 23 | 798-MUM-2004-FORM 2(GRANTED)-(23-3-2011).pdf | 2018-08-09 |
| 24 | 798-MUM-2004-FORM 2(TITLE PAGE)-(26-8-2009).pdf | 2018-08-09 |
| 24 | 798-MUM-2004-CORRESPONDENCE(IPO)-(25-6-2009).pdf | 2018-08-09 |
| 25 | 798-MUM-2004-CORRESPONDENCE(IPO)-(25-3-2011).pdf | 2018-08-09 |
| 25 | 798-MUM-2004-FORM 2(TITLE PAGE)-(28-7-2004).pdf | 2018-08-09 |
| 26 | 798-MUM-2004-CORRESPONDENCE(26-8-2009).pdf | 2018-08-09 |
| 26 | 798-MUM-2004-FORM 2(TITLE PAGE)-(GRANTED)-(23-3-2011).pdf | 2018-08-09 |
| 27 | 798-MUM-2004-CORRESPONDENCE(25-6-2010).pdf | 2018-08-09 |
| 27 | 798-MUM-2004-FORM 3(26-8-2009).pdf | 2018-08-09 |
| 28 | 798-MUM-2004-CORRESPONDENCE(25-6-2009).pdf | 2018-08-09 |
| 28 | 798-MUM-2004-OTHER DOCUMENT(25-6-2009).pdf | 2018-08-09 |
| 29 | 798-MUM-2004-CORRESPONDENCE(21-6-2010).pdf | 2018-08-09 |
| 29 | 798-MUM-2004-SPECIFICATION(AMENDED)-(1-10-2009).pdf | 2018-08-09 |
| 30 | 798-MUM-2004-CORRESPONDENCE(18-8-2007).pdf | 2018-08-09 |
| 30 | 798-MUM-2004-SPECIFICATION(AMENDED)-(25-6-2009).pdf | 2018-08-09 |
| 31 | 798-MUM-2004-WO INTERNATIONAL PUBLICATION REPORT(28-7-2004).pdf | 2018-08-09 |
| 31 | 798-MUM-2004-CORRESPONDENCE(1-10-2009).pdf | 2018-08-09 |
| 32 | 798-MUM-2004_EXAMREPORT.pdf | 2018-08-09 |
| 32 | 798-MUM-2004-CLAIMS(MARKED COPY)-(25-6-2010).pdf | 2018-08-09 |
| 33 | 798-MUM-2004-CLAIMS(MARKED COPY)-(1-10-2009).pdf | 2018-08-09 |
| 33 | 798-MUM-2004-CLAIMS(AMENDED)-(17-11-2009).pdf | 2009-11-17 |
| 34 | 798-MUM-2004-FORM 1(17-11-2009).pdf | 2009-11-17 |
| 34 | 798-MUM-2004-CLAIMS(GRANTED)-(23-3-2011).pdf | 2018-08-09 |
| 35 | 798-MUM-2004-FORM 2(TITLE PAGE)-(17-11-2009).pdf | 2009-11-17 |
| 35 | 798-MUM-2004-CLAIMS(AMENDED)-(25-6-2010).pdf | 2018-08-09 |
| 36 | 798-MUM-2004-PETITION UNDER RULE 137(17-11-2009).pdf | 2009-11-17 |
| 36 | 798-MUM-2004-CLAIMS(28-7-2004).pdf | 2018-08-09 |
| 37 | 798-MUM-2004-CLAIMS(25-6-2009).pdf | 2018-08-09 |
| 37 | 798-MUM-2004-REPLY TO EXAMINATION REPORT(17-11-2009).pdf | 2009-11-17 |
| 38 | 798-MUM-2004-CANCELLED PAGES(25-6-2010).pdf | 2018-08-09 |
| 38 | 798-MUM-2004-SPECIFICATION(AMENDED)-(17-11-2009).pdf | 2009-11-17 |