Details for Patent: 4,100,347
✉ Email this page to a colleague
Summary for Patent: 4,100,347
| Title: | 3,4-Dihydro-2-methyl-4-oxo-2H-1,2-benzothiazine-3-carboxylic acid-1,1-dioxide |
| Abstract: | Process for production of 3,4-dihydro-2-methyl-4-oxo-2H-1,2-benzothiazine-3-carboxylic acid-1,1-dioxide by hydrolysis, in the presence of hydroxide ions, of an alkyl or aralkyl ester thereof followed by precipitation of the acid at pH below 6.0 and its use as an intermediate for the production of N-(2-pyridyl)-3,4-dihydro-2-methyl-4-oxo-2H-1,2-benzothiazine-3-carboxamid e-1,1-dioxide and the analogous N-(2-thiazolyl)-compound, effective antiinflammatory agents. |
| Inventor(s): | Hammen; Philip D. (East Lyme, CT) |
| Assignee: | Pfizer Inc. (New York, NY) |
| Application Number: | 05/694,572 |
|
Patent Claim Types: see list of patent claims | Compound; |
Drugs Protected by US Patent 4,100,347
| Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | TE | Type | RLD | RS | Patent No. | Patent Expiration | Product | Substance | Delist Req. | Patented / Exclusive Use | Submissiondate |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| >Applicant | >Tradename | >Generic Name | >Dosage | >NDA | >Approval Date | >TE | >Type | >RLD | >RS | >Patent No. | >Patent Expiration | >Product | >Substance | >Delist Req. | >Patented / Exclusive Use | >Submissiondate |
International Family Members for US Patent 4,100,347
| Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
|---|---|---|---|---|---|
| Argentina | 215006 | ⤷ Sign Up | |||
| Austria | 356126 | ⤷ Sign Up | |||
| Austria | A412177 | ⤷ Sign Up | |||
| Australia | 2566677 | ⤷ Sign Up | |||
| Australia | 511643 | ⤷ Sign Up | |||
| Belgium | 855532 | ⤷ Sign Up | |||
| Bulgaria | 41307 | ⤷ Sign Up | |||
| >Country | >Patent Number | >Estimated Expiration | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration |
