Abstract: ABSTRACT The present invention relates to novel salt of 3,4-diaminopyridine as 3,4-diaminopyridine dihydrochloride (or Amifampridine dihydrochloride), useful in the preparation of pharmaceutical composition thereof. The present application also relates toan improved process for the preparation of substantially pure Amifampridine dihydrochloride (I) having purity of greater than 99.5% (by HPLC).
SOFT COPY ATTACHED IN PDF
| # | Name | Date |
|---|---|---|
| 1 | Form 5 [02-04-2016(online)].pdf | 2016-04-02 |
| 2 | Form 3 [02-04-2016(online)].pdf | 2016-04-02 |
| 3 | Drawing [02-04-2016(online)].pdf | 2016-04-02 |
| 4 | Description(Complete) [02-04-2016(online)].pdf | 2016-04-02 |
| 5 | 201641011735-Correspondence-Form 1,3,5-150416.pdf | 2016-07-08 |
| 6 | REQUEST FOR CERTIFIED COPY [03-04-2017(online)].pdf | 2017-04-03 |
| 7 | 201641011735-FORM 18 [17-02-2020(online)].pdf | 2020-02-17 |
| 8 | 201641011735-FORM 3 [04-06-2020(online)].pdf | 2020-06-04 |
| 9 | 201641011735-OTHERS [02-01-2021(online)].pdf | 2021-01-02 |
| 10 | 201641011735-FER_SER_REPLY [02-01-2021(online)].pdf | 2021-01-02 |
| 11 | 201641011735-CLAIMS [02-01-2021(online)].pdf | 2021-01-02 |
| 12 | 201641011735-ABSTRACT [02-01-2021(online)].pdf | 2021-01-02 |
| 13 | 201641011735-FER_SER_REPLY [22-01-2021(online)].pdf | 2021-01-22 |
| 14 | 201641011735-Correspondence to notify the Controller [16-02-2021(online)].pdf | 2021-02-16 |
| 15 | 201641011735-Correspondence to notify the Controller [08-03-2021(online)].pdf | 2021-03-08 |
| 16 | 201641011735-Written submissions and relevant documents [16-03-2021(online)].pdf | 2021-03-16 |
| 17 | 201641011735-PatentCertificate18-03-2021.pdf | 2021-03-18 |
| 18 | 201641011735-IntimationOfGrant18-03-2021.pdf | 2021-03-18 |
| 19 | 201641011735-US(14)-HearingNotice-(HearingDate-10-03-2021).pdf | 2021-10-17 |
| 20 | 201641011735-SER.pdf | 2021-10-17 |
| 21 | 201641011735-FER.pdf | 2021-10-17 |
| 1 | 201641011735searchE_17-08-2020.pdf |