ES449521A1 - A procedure for the preparation of derivatives of 1, 4 - dihidropiridina. (Machine-translation by Google Translate, not legally binding) - Google Patents
A procedure for the preparation of derivatives of 1, 4 - dihidropiridina. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES449521A1 ES449521A1 ES449521A ES449521A ES449521A1 ES 449521 A1 ES449521 A1 ES 449521A1 ES 449521 A ES449521 A ES 449521A ES 449521 A ES449521 A ES 449521A ES 449521 A1 ES449521 A1 ES 449521A1
- Authority
- ES
- Spain
- Prior art keywords
- formula
- methyl
- translation
- procedure
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Plural Heterocyclic Compounds (AREA)
- Hydrogenated Pyridines (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
A procedure for the preparation of 1,4-dihydropyridine derivatives according to the formula: **(See formula)** wherein R1 is phenyl which may have one or more appropriate substituents selected from halogen, nitro, hydroxy, halomethyl, lower methoxy, and allyloxy, or thienyl; R2 and R3 are each the same or different esterified carboxy, and one between R4e and R5e is hydrogen, methyl or hydroxy-alkyl with 1 or 2 carbon atoms and the other is hydroxyalkyl with 1 or 2 carbon atoms, or R4e it is methyl and R3 and R5e are combined to form a group according to the formula: **(See formula)** in which R6 is hydrogen or methyl, characterized in that it comprises reducing a compound according to the formula: **(See formula)** in which R1, R2 and r3 each have the meaning given above, and one between R4, and R5 is hydrogen, methyl or alkyl with 1 or 2 carbon atoms substituted with oxo and the other is alkyl with 1 or 2 atoms of carbon substituted with oxo. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB27945/75A GB1552911A (en) | 1975-07-02 | 1975-07-02 | 1,4 dihydropyridine derivatives and the preparation thereof |
| GB5152475 | 1975-12-16 | ||
| GB1376176 | 1976-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES449521A1 true ES449521A1 (en) | 1977-12-16 |
Family
ID=27257034
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES449521A Expired ES449521A1 (en) | 1975-07-02 | 1976-07-02 | A procedure for the preparation of derivatives of 1, 4 - dihidropiridina. (Machine-translation by Google Translate, not legally binding) |
| ES461256A Expired ES461256A1 (en) | 1975-07-02 | 1977-08-01 | A procedure for preparing 1,4-dihydropyridine derivatives. (Machine-translation by Google Translate, not legally binding) |
| ES461257A Expired ES461257A1 (en) | 1975-07-02 | 1977-08-01 | A procedure for the preparation of 1,4-dihydropyridine derivatives. (Machine-translation by Google Translate, not legally binding) |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES461256A Expired ES461256A1 (en) | 1975-07-02 | 1977-08-01 | A procedure for preparing 1,4-dihydropyridine derivatives. (Machine-translation by Google Translate, not legally binding) |
| ES461257A Expired ES461257A1 (en) | 1975-07-02 | 1977-08-01 | A procedure for the preparation of 1,4-dihydropyridine derivatives. (Machine-translation by Google Translate, not legally binding) |
Country Status (5)
| Country | Link |
|---|---|
| AR (2) | AR218868A1 (en) |
| AT (2) | AT360531B (en) |
| CS (3) | CS189050B2 (en) |
| ES (3) | ES449521A1 (en) |
| HU (3) | HU173195B (en) |
-
1976
- 1976-07-01 CS CS259977A patent/CS189050B2/en unknown
- 1976-07-01 CS CS435676A patent/CS189011B2/en unknown
- 1976-07-01 CS CS259677A patent/CS189047B2/en unknown
- 1976-07-02 AT AT485676A patent/AT360531B/en not_active IP Right Cessation
- 1976-07-02 ES ES449521A patent/ES449521A1/en not_active Expired
- 1976-07-02 HU HU76FU353A patent/HU173195B/en unknown
- 1976-07-02 HU HU76FU352A patent/HU173194B/en unknown
- 1976-07-02 HU HU76FU342A patent/HU173063B/en unknown
-
1977
- 1977-03-16 AR AR26687177A patent/AR218868A1/en active
- 1977-03-16 AR AR26687277A patent/AR215256A1/en active
- 1977-08-01 ES ES461256A patent/ES461256A1/en not_active Expired
- 1977-08-01 ES ES461257A patent/ES461257A1/en not_active Expired
-
1979
- 1979-08-24 AT AT569779A patent/AT360538B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ES461256A1 (en) | 1978-05-01 |
| HU173195B (en) | 1979-03-28 |
| AR215256A1 (en) | 1979-09-28 |
| ES461257A1 (en) | 1978-05-01 |
| HU173194B (en) | 1979-03-28 |
| AT360531B (en) | 1981-01-12 |
| AR218868A1 (en) | 1980-07-15 |
| HU173063B (en) | 1979-02-28 |
| CS189047B2 (en) | 1979-03-30 |
| AT360538B (en) | 1981-01-12 |
| ATA569779A (en) | 1980-06-15 |
| CS189050B2 (en) | 1979-03-30 |
| CS189011B2 (en) | 1979-03-30 |
| ATA485676A (en) | 1980-06-15 |
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