Abstract: The present application relates to process for the preparation of ammonium salt of thiofuroic acid represented by the Formula I, Formula I which is an intermediate of furaca, chemically known as 7-amino-3-(2-furanylcarbonylthiomethyl)-3-cephem-4-carboxylic acid, of Formula II. Formula II Furaca is a key intermediate employed for the preparation of ceftiofur represented by the Formula III. Formula III
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| # | Name | Date |
|---|---|---|
| 1 | 3811-del-2011-Form-3.pdf | 2012-07-19 |
| 2 | 3811-del-2011-Form-2.pdf | 2012-07-19 |
| 3 | 3811-del-2011-Form-1.pdf | 2012-07-19 |
| 4 | 3811-del-2011-Description (Provisional).pdf | 2012-07-19 |
| 5 | 3811-del-2011-Correspondenc-others.pdf | 2012-07-19 |
| 6 | 3811-del-2011-Abstract.pdf | 2012-07-19 |
| 7 | 3811-del-2011-Form-5-(24-12-2012).pdf | 2012-12-24 |
| 8 | 3811-del-2011-Form-3-(24-12-2012).pdf | 2012-12-24 |
| 9 | 3811-del-2011-Form-2-(24-12-2012).pdf | 2012-12-24 |
| 10 | 3811-del-2011-Correspondence Others-(24-12-2012).pdf | 2012-12-24 |
| 11 | 3811-del-2011-Form-18-(09-11-2015).pdf | 2015-11-09 |
| 12 | 3811-del-2011-Correspondence Others-(09-11-2015).pdf | 2015-11-09 |
| 13 | 3811-DEL-2011-FER.pdf | 2018-12-04 |
| 14 | 3811-DEL-2011-OTHERS-230519.pdf | 2019-05-29 |
| 15 | 3811-DEL-2011-OTHERS-230519-.pdf | 2019-05-29 |
| 16 | 3811-DEL-2011-Form 5-230519.pdf | 2019-05-29 |
| 17 | 3811-DEL-2011-Form 2(Title Page)-230519.pdf | 2019-05-29 |
| 18 | 3811-DEL-2011-Examination Report Reply Recieved-230519.pdf | 2019-05-29 |
| 19 | 3811-DEL-2011-Description(Complete)-230519.pdf | 2019-05-29 |
| 20 | 3811-DEL-2011-Claims-230519.pdf | 2019-05-29 |
| 21 | 3811-DEL-2011-US(14)-HearingNotice-(HearingDate-25-08-2021).pdf | 2021-10-17 |
| 1 | 3811DEL2011search_29-11-2018.pdf |
| 2 | 2020-10-1121-17-46AE_11-10-2020.pdf |