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Enantioselective Synthesis Of Brivaracetam And Intermediates Thereof
Abstract: The present invention relates to an improved and economical process for enantioselective synthesis and purification of a novel key intermediate of Brivaracetam. Further, the present invention also relates to a process for the preparation of a chirally pure Brivaracetam of formula I utilizing the said intermediate.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
17 January 2019
Publication Number
30/2020
Publication Type
INA
Invention Field
CHEMICAL
Status
Email
kolkatapatent@Lsdavar.in
Parent Application
Patent Number
Legal Status
Grant Date
2023-10-09
Renewal Date
Applicants
Clininvent Research Pvt. Ltd.
Block BN, Plot -7, Salt Lake, Sector-V, West Bengal, Kolkata-700091, India
Inventors
1. Sarabindu Roy
Sreekanan Pally, Batanagar, 24-Parganas (South), West Bengal 700140, India
2. Angshuman Ghosh
570/483, Ward No 12
Raghunathpur.
Jhargram
Pin: 721507
West Bengal, India
3. Ramesh Dhondi Kubeer
House No. 3-1-14/6 Saidabad Colony, New Bus stand, ARMOOR, Nizamabad, Telangana-503224, India
4. Mutyala V. V. Vara Prasad
S/O-Lakshamana Rao, 3-114 Pedapatnam Lanka, Near Kanaka Durga Temple, Mamidikuduru Mandal, Andhra Pradesh 533247,India
5. Gopal Paul
Vill-Chopra Jhar, PO-Islampur , Dist-Uttar Dinajpur, West Bengal 733202, India
6. Abhishek Garai
Vill-Changsole, PO-PINGBONI, Dist-PASCHIM MEDINIPUR, West Bengal 721128, India
7. Sourav Chakraborty
Vill-Garpratap Nagar, PO-GHATAL, Dist- PASCHIM MEDINIPUR, West Bengal 721212, India
8. Animesh Haldar
23 Sukanta Sarani,
South Roy Nagar,
Bansdroni, Kolkata
Pin-700070,West Bengal, India
9. Ajay Kumar Yadaw
BA-22, U-3, Block B
OM MOY Housing complex
Prafulla Kanan (W) Kolkata 700101, India
10. Subho Roy
ADRIKA APARTMENT #1, Premises # 1151/2, 18/2 KALIKAPUR ROAD, Kolkata-700099, West Bengal, India
Specification
DESC:PLEASE SEE THE ATTACHMENT ,CLAIMS:PLEASE SEE THE ATTACHMENT
Documents
Orders
| Section | Controller | Decision Date |
|---|---|---|
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 201931002041-IntimationOfGrant09-10-2023.pdf | 2023-10-09 |
| 1 | 201931002041-STATEMENT OF UNDERTAKING (FORM 3) [17-01-2019(online)].pdf | 2019-01-17 |
| 2 | 201931002041-PatentCertificate09-10-2023.pdf | 2023-10-09 |
| 2 | 201931002041-PROVISIONAL SPECIFICATION [17-01-2019(online)].pdf | 2019-01-17 |
| 3 | 201931002041-FORM 1 [17-01-2019(online)].pdf | 2019-01-17 |
| 3 | 201931002041-ENDORSEMENT BY INVENTORS [05-09-2023(online)].pdf | 2023-09-05 |
| 4 | 201931002041-Proof of Right (MANDATORY) [11-03-2019(online)].pdf | 2019-03-11 |
| 4 | 201931002041-PETITION UNDER RULE 137 [05-09-2023(online)].pdf | 2023-09-05 |
| 5 | 201931002041-Response to office action [05-09-2023(online)].pdf | 2023-09-05 |
| 5 | 201931002041-FORM-26 [01-04-2019(online)].pdf | 2019-04-01 |
| 6 | 201931002041-Written submissions and relevant documents [05-09-2023(online)].pdf | 2023-09-05 |
| 6 | 201931002041-DRAWING [16-01-2020(online)].pdf | 2020-01-16 |
| 7 | 201931002041-CORRESPONDENCE-OTHERS [16-01-2020(online)].pdf | 2020-01-16 |
| 7 | 201931002041-Correspondence to notify the Controller [21-08-2023(online)].pdf | 2023-08-21 |
| 8 | 201931002041-FORM-26 [21-08-2023(online)].pdf | 2023-08-21 |
| 8 | 201931002041-COMPLETE SPECIFICATION [16-01-2020(online)].pdf | 2020-01-16 |
| 9 | 201931002041-Request Letter-Correspondence [13-02-2020(online)].pdf | 2020-02-13 |
| 9 | 201931002041-US(14)-HearingNotice-(HearingDate-23-08-2023).pdf | 2023-08-02 |
| 10 | 201931002041-Annexure [16-11-2021(online)].pdf | 2021-11-16 |
| 10 | 201931002041-Form 1 (Submitted on date of filing) [13-02-2020(online)].pdf | 2020-02-13 |
| 11 | 201931002041-CERTIFIED COPIES TRANSMISSION TO IB [13-02-2020(online)].pdf | 2020-02-13 |
| 11 | 201931002041-CLAIMS [16-11-2021(online)].pdf | 2021-11-16 |
| 12 | 201931002041-ENDORSEMENT BY INVENTORS [16-11-2021(online)].pdf | 2021-11-16 |
| 12 | 201931002041-FORM 3 [09-07-2020(online)].pdf | 2020-07-09 |
| 13 | 201931002041-FER_SER_REPLY [16-11-2021(online)].pdf | 2021-11-16 |
| 13 | 201931002041-FORM 18 [19-06-2021(online)].pdf | 2021-06-19 |
| 14 | 201931002041-FER.pdf | 2021-10-18 |
| 14 | 201931002041-FORM 3 [16-11-2021(online)].pdf | 2021-11-16 |
| 15 | 201931002041-FER.pdf | 2021-10-18 |
| 15 | 201931002041-FORM 3 [16-11-2021(online)].pdf | 2021-11-16 |
| 16 | 201931002041-FER_SER_REPLY [16-11-2021(online)].pdf | 2021-11-16 |
| 16 | 201931002041-FORM 18 [19-06-2021(online)].pdf | 2021-06-19 |
| 17 | 201931002041-FORM 3 [09-07-2020(online)].pdf | 2020-07-09 |
| 17 | 201931002041-ENDORSEMENT BY INVENTORS [16-11-2021(online)].pdf | 2021-11-16 |
| 18 | 201931002041-CERTIFIED COPIES TRANSMISSION TO IB [13-02-2020(online)].pdf | 2020-02-13 |
| 18 | 201931002041-CLAIMS [16-11-2021(online)].pdf | 2021-11-16 |
| 19 | 201931002041-Annexure [16-11-2021(online)].pdf | 2021-11-16 |
| 19 | 201931002041-Form 1 (Submitted on date of filing) [13-02-2020(online)].pdf | 2020-02-13 |
| 20 | 201931002041-Request Letter-Correspondence [13-02-2020(online)].pdf | 2020-02-13 |
| 20 | 201931002041-US(14)-HearingNotice-(HearingDate-23-08-2023).pdf | 2023-08-02 |
| 21 | 201931002041-COMPLETE SPECIFICATION [16-01-2020(online)].pdf | 2020-01-16 |
| 21 | 201931002041-FORM-26 [21-08-2023(online)].pdf | 2023-08-21 |
| 22 | 201931002041-Correspondence to notify the Controller [21-08-2023(online)].pdf | 2023-08-21 |
| 22 | 201931002041-CORRESPONDENCE-OTHERS [16-01-2020(online)].pdf | 2020-01-16 |
| 23 | 201931002041-DRAWING [16-01-2020(online)].pdf | 2020-01-16 |
| 23 | 201931002041-Written submissions and relevant documents [05-09-2023(online)].pdf | 2023-09-05 |
| 24 | 201931002041-FORM-26 [01-04-2019(online)].pdf | 2019-04-01 |
| 24 | 201931002041-Response to office action [05-09-2023(online)].pdf | 2023-09-05 |
| 25 | 201931002041-Proof of Right (MANDATORY) [11-03-2019(online)].pdf | 2019-03-11 |
| 25 | 201931002041-PETITION UNDER RULE 137 [05-09-2023(online)].pdf | 2023-09-05 |
| 26 | 201931002041-FORM 1 [17-01-2019(online)].pdf | 2019-01-17 |
| 26 | 201931002041-ENDORSEMENT BY INVENTORS [05-09-2023(online)].pdf | 2023-09-05 |
| 27 | 201931002041-PROVISIONAL SPECIFICATION [17-01-2019(online)].pdf | 2019-01-17 |
| 27 | 201931002041-PatentCertificate09-10-2023.pdf | 2023-10-09 |
| 28 | 201931002041-STATEMENT OF UNDERTAKING (FORM 3) [17-01-2019(online)].pdf | 2019-01-17 |
| 28 | 201931002041-IntimationOfGrant09-10-2023.pdf | 2023-10-09 |
Search Strategy
| 1 | SearchStrategyE_25-06-2021.pdf |