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"An Improved Process For The Preparation Of Bendamustine Hydrochloride"
Abstract: The present invention relates to an improved process for the synthesis of bendamustine, in particular , bendamustine hydrochloride of the formula (VI) and its intermediate l-Methyl-5-[bis(2-chloroethyl)amino]-1H-benzimidazol-2-yl]lithium butanoate of formula(V), both having a purity of >99%, which is simple, convenient, economical, does not use hazardous chemicals and industrially viable.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
26 September 2011
Publication Number
13/2013
Publication Type
INA
Invention Field
CHEMICAL
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2021-08-03
Renewal Date
Applicants
FRESENIUS KABI ONCOLOGY LTD.
B - 310, SOM DATT CHAMBERS - I, BHIKAJI CAMA PLACE, NEW DELHI - 110 066, INDIA
Inventors
1. MISHRA, BHUWAN, BHASKAR
FRESENIUS KABI ONCOLOGY LIMITED, ECHELON INSTITUTIONAL AREA, PLOT NO. 11, SECTOR - 32, GURGAON - 122 001, HARYANA, INDIA
2. KACHHADIA, NIKUNJ SHAMBHUBHAI
FRESENIUS KABI ONCOLOGY LIMITED, ECHELON INSTITUTIONAL AREA, PLOT NO. 11, SECTOR - 32, GURGAON - 122 001, HARYANA, INDIA
3. TOMAR, VINOD SINGH
FRESENIUS KABI ONCOLOGY LIMITED, ECHELON INSTITUTIONAL AREA, PLOT NO. 11, SECTOR - 32, GURGAON - 122 001, HARYANA, INDIA
4. LAHIRI, SASWATA
FRESENIUS KABI ONCOLOGY LIMITED, ECHELON INSTITUTIONAL AREA, PLOT NO. 11, SECTOR - 32, GURGAON - 122 001, HARYANA, INDIA
Specification
NA
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 2795-del-2011-GPA-(08-11-2011).pdf | 2011-11-08 |
| 2 | 2795-del-2011-Form-1-(08-11-2011).pdf | 2011-11-08 |
| 3 | 2795-del-2011-Correspondence-Others-(08-11-2011).pdf | 2011-11-08 |
| 4 | 2795-del-2011-Form-5.pdf | 2012-03-22 |
| 5 | 2795-del-2011-Form-3.pdf | 2012-03-22 |
| 6 | 2795-del-2011-Form-2.pdf | 2012-03-22 |
| 7 | 2795-del-2011-Form-1.pdf | 2012-03-22 |
| 8 | 2795-del-2011-Drawings.pdf | 2012-03-22 |
| 9 | 2795-del-2011-Description (Complete).pdf | 2012-03-22 |
| 10 | 2795-del-2011-Correspondence Others.pdf | 2012-03-22 |
| 11 | 2795-del-2011-Claims.pdf | 2012-03-22 |
| 12 | 2795-del-2011-Abstract.pdf | 2012-03-22 |
| 13 | 2795-del-2011-Form-3-(05-12-2012).pdf | 2012-12-05 |
| 14 | 2795-del-2011-Correspondence Others-(05-12-2012).pdf | 2012-12-05 |
| 15 | 2795-del-2011-Form-18-(01-05-2013).pdf | 2013-05-01 |
| 16 | 2795-del-2011-Correspondance Others-(01-05-2013).pdf | 2013-05-01 |
| 17 | IN_2795-DEl-2011.pdf | 2014-06-02 |
| 18 | Form 3 [25-05-2017(online)].pdf | 2017-05-25 |
| 19 | 2795-DEL-2011-FER.pdf | 2017-08-14 |
| 20 | 2795-DEL-2011-RELEVANT DOCUMENTS [09-02-2018(online)].pdf | 2018-02-09 |
| 21 | 2795-DEL-2011-PETITION UNDER RULE 137 [09-02-2018(online)].pdf | 2018-02-09 |
| 22 | 2795-DEL-2011-OTHERS [09-02-2018(online)].pdf | 2018-02-09 |
| 23 | 2795-DEL-2011-FER_SER_REPLY [09-02-2018(online)].pdf | 2018-02-09 |
| 24 | 2795-DEL-2011-CLAIMS [09-02-2018(online)].pdf | 2018-02-09 |
| 25 | 2795-DEL-2011-HearingNoticeLetter.pdf | 2019-01-07 |
| 26 | 2795-del-2011-Retyped Pages under Rule 14(1) (MANDATORY) [25-03-2019(online)].pdf | 2019-03-25 |
| 27 | 2795-DEL-2011-PETITION UNDER RULE 137 [25-03-2019(online)].pdf | 2019-03-25 |
| 28 | 2795-del-2011-2. Marked Copy under Rule 14(2) (MANDATORY) [25-03-2019(online)].pdf | 2019-03-25 |
| 29 | 2795-DEL-2011-PatentCertificate03-08-2021.pdf | 2021-08-03 |
| 30 | 2795-DEL-2011-IntimationOfGrant03-08-2021.pdf | 2021-08-03 |
| 31 | 2795-DEL-2011-RELEVANT DOCUMENTS [21-09-2022(online)].pdf | 2022-09-21 |
| 32 | 2795-DEL-2011-RELEVANT DOCUMENTS [06-09-2023(online)].pdf | 2023-09-06 |
| 33 | 2795-DEL-2011-RELEVANT DOCUMENTS [22-09-2023(online)].pdf | 2023-09-22 |
| 34 | 2795-DEL-2011-POA [28-06-2024(online)].pdf | 2024-06-28 |
| 35 | 2795-DEL-2011-FORM 13 [28-06-2024(online)].pdf | 2024-06-28 |
| 36 | 2795-DEL-2011-Proof of Right [11-06-2025(online)].pdf | 2025-06-11 |
Search Strategy
| 1 | search_10-08-2017.pdf |