RO68751B1 - Procedeu de preparare a acizilor 8-alchil-5-oxo-5,8-dihidro-pirido (2,3-d).pirimidin-6-carboxilici - Google Patents
Procedeu de preparare a acizilor 8-alchil-5-oxo-5,8-dihidro-pirido (2,3-d).pirimidin-6-carboxiliciInfo
- Publication number
- RO68751B1 RO68751B1 RO84329A RO8432973A RO68751B1 RO 68751 B1 RO68751 B1 RO 68751B1 RO 84329 A RO84329 A RO 84329A RO 8432973 A RO8432973 A RO 8432973A RO 68751 B1 RO68751 B1 RO 68751B1
- Authority
- RO
- Romania
- Prior art keywords
- dihydro
- oxo
- alkyl
- preparation
- carboxylic acids
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000002360 preparation method Methods 0.000 title abstract 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 2
- 230000001476 alcoholic effect Effects 0.000 abstract 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 abstract 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- SOWKKFOWDHDXKW-UHFFFAOYSA-N ethyl 2-chloro-5-oxo-8h-pyrido[2,3-d]pyrimidine-6-carboxylate Chemical compound ClC1=NC=C2C(=O)C(C(=O)OCC)=CNC2=N1 SOWKKFOWDHDXKW-UHFFFAOYSA-N 0.000 abstract 1
- YPOXGDJGKBXRFP-UHFFFAOYSA-N pyrimidine-4-carboxylic acid Chemical class OC(=O)C1=CC=NC=N1 YPOXGDJGKBXRFP-UHFFFAOYSA-N 0.000 abstract 1
- 238000010992 reflux Methods 0.000 abstract 1
Landscapes
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Procedeu de preparare a acizilor 8-alchil-5-oxo-5,8-dihidro-pirido (2,3-d)-pirimidin-6-carboxilici cu formula I: (vezi formula) caracterizat prin aceea ca se condenseaza 2-cloro-6-carbetoxi-5-oxo-5,8-dihidro-pirido(2,3-d)-pirimidina, cu formula generala II: (vezi formula) formil-1-piperazina în mediu cloroform, la temperatura de reflux, pentru a obtine un derivat 4-formil-8-piperazino care este deformilat prin tratare cu solutie alcoolica de acid clorhidric, la temperatura camerei, obtinîndu-se compusul cu formula III: (vezi formula) care se saponifica, prin tratare cu solutie apoasa sau hidroalcoolica de hidroxid alcalin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO84329A RO68751B1 (ro) | 1973-08-02 | 1973-08-02 | Procedeu de preparare a acizilor 8-alchil-5-oxo-5,8-dihidro-pirido (2,3-d).pirimidin-6-carboxilici |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO84329A RO68751B1 (ro) | 1973-08-02 | 1973-08-02 | Procedeu de preparare a acizilor 8-alchil-5-oxo-5,8-dihidro-pirido (2,3-d).pirimidin-6-carboxilici |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RO68751B1 true RO68751B1 (ro) | 1985-01-31 |
Family
ID=40902996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO84329A RO68751B1 (ro) | 1973-08-02 | 1973-08-02 | Procedeu de preparare a acizilor 8-alchil-5-oxo-5,8-dihidro-pirido (2,3-d).pirimidin-6-carboxilici |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO68751B1 (ro) |
-
1973
- 1973-08-02 RO RO84329A patent/RO68751B1/ro unknown
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