Details for Patent: 3,799,934
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Summary for Patent: 3,799,934
| Title: | Unsymmetrical esters of 1,4-dihydropyridine 3,5-dicarboxylic acid |
| Abstract: | UNSYMMERTICAL ESTERS OF 4-SUBSTITUTED-1,4-DIHYDROPYRIDINE 3,5-DICARBOXYLIC ACID OPTIONALLY SUBSTITUTED BY LOWER ALKYL GROUPS IN THE 2- AND 6-POSITION ARE CARDIOVASCULAR AGENTS. THE COMPOUNDS, OF WHICH 2,6-DIMETHYL4-(2''-NITRO PHENYL)-1,4-DIHYDYDROPRIDINE 3,5-DICARBOXLIC ACID 3-METHYL-5-ALLYL ESTER IS A TYPICAL EXAMPLE, CAN BE PREPARED THROUGH CONDENSATION OF AN YLIDENE-B-KETOCARBOXYLIC ACID ESTER WITH EITHER AN ENAMINO CARBOXLIC ACID ESTER OR A B-KETOCARBOXYLIC ACID ESTER AND AMMONIA. |
| Inventor(s): | W Vater, K Stoepel, H Meyer, F Bossert |
| Assignee: | Bayer AG |
| Application Number: | US00242239A |
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Patent Claim Types: see list of patent claims |
Drugs Protected by US Patent 3,799,934
| 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 3,799,934
| Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
|---|---|---|---|---|---|
| Austria | 315178 | ⤷ Start Trial | |||
| Austria | 316551 | ⤷ Start Trial | |||
| Austria | 316552 | ⤷ Start Trial | |||
| Australia | 4045472 | ⤷ Start Trial | |||
| Australia | 4045572 | ⤷ Start Trial | |||
| Australia | 459338 | ⤷ Start Trial | |||
| >Country | >Patent Number | >Estimated Expiration | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration |
