RO91023B1 - Process for preparing a pyrazolidine derivative - Google Patents
Process for preparing a pyrazolidine derivativeInfo
- Publication number
- RO91023B1 RO91023B1 RO118585A RO11858585A RO91023B1 RO 91023 B1 RO91023 B1 RO 91023B1 RO 118585 A RO118585 A RO 118585A RO 11858585 A RO11858585 A RO 11858585A RO 91023 B1 RO91023 B1 RO 91023B1
- Authority
- RO
- Romania
- Prior art keywords
- phenylbutazone
- water
- derivative
- preparing
- chlorophenoxyacetic acid
- Prior art date
Links
- 150000003218 pyrazolidines Chemical class 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- SODPIMGUZLOIPE-UHFFFAOYSA-N (4-chlorophenoxy)acetic acid Chemical compound OC(=O)COC1=CC=C(Cl)C=C1 SODPIMGUZLOIPE-UHFFFAOYSA-N 0.000 abstract 2
- 229960002895 phenylbutazone Drugs 0.000 abstract 2
- VYMDGNCVAMGZFE-UHFFFAOYSA-N phenylbutazonum Chemical compound O=C1C(CCCC)C(=O)N(C=2C=CC=CC=2)N1C1=CC=CC=C1 VYMDGNCVAMGZFE-UHFFFAOYSA-N 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 150000003869 acetamides Chemical class 0.000 abstract 1
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 238000007112 amidation reaction Methods 0.000 abstract 1
- UORGKWWJEQDTGX-UHFFFAOYSA-N clofexamide Chemical compound CCN(CC)CCNC(=O)COC1=CC=C(Cl)C=C1 UORGKWWJEQDTGX-UHFFFAOYSA-N 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- YPLIFKZBNCNJJN-UHFFFAOYSA-N n,n-bis(ethylamino)ethanamine Chemical compound CCNN(CC)NCC YPLIFKZBNCNJJN-UHFFFAOYSA-N 0.000 abstract 1
- 239000003495 polar organic solvent Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000001953 recrystallisation Methods 0.000 abstract 1
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Inventia se refera la un procedeu de obtinere a unui derivat de pirazolidina constand în combinatia moleculara a 2(4-clorfenoxi)-N(2-(dietilamino)-etil/acetaminei cu 3,5 dioxo-1,2-difenil -4n-butilpirazolidina (fenilbutazona)prin reactia dintre acidul 4-clorfenoxiacetic, N,N-dietilamido-etilamina si fenilbutazona si consta în aceea ca acidul 4-clorfenoxiacetic în solvent organic nepolar cu mediu, se supune la început reactiei de amidare cu N,N-dietilaminoetilamina iar derivatul de acetamida rezultat în concentratie de 15-25% se aduce în contact cu fenilbutazona în rapoarte echimoleculare, prin adaos de apa, cu izolarea produsului prin filtrare, urmata de recristalizare în conditii cunoscute din alcooli inferiori în amestec cu apa.The invention relates to a process for the preparation of a pyrazolidine derivative consisting of the molecular combination of 2 (4-chlorophenoxy) -N (2- (diethylamino) ethyl) acetamide with 3,5-dioxo-1,2- (4-chlorophenoxyacetic acid, N, N-diethylamido-ethylamine and phenylbutazone) and consists in that 4-chlorophenoxyacetic acid in non-polar organic solvent is first submitted to the amidation reaction with N, N-diethylaminoethylamine and the resulting acetamide derivative at a concentration of 15-25% is contacted with phenylbutazone in equimolecular ratios by addition of water with the product being isolated by filtration followed by recrystallization under known conditions from lower alcohols in admixture with water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO118585A RO91023B1 (en) | 1985-04-30 | 1985-04-30 | Process for preparing a pyrazolidine derivative |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO118585A RO91023B1 (en) | 1985-04-30 | 1985-04-30 | Process for preparing a pyrazolidine derivative |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO91023A2 RO91023A2 (en) | 1987-02-27 |
| RO91023B1 true RO91023B1 (en) | 1987-02-28 |
Family
ID=20117098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO118585A RO91023B1 (en) | 1985-04-30 | 1985-04-30 | Process for preparing a pyrazolidine derivative |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO91023B1 (en) |
-
1985
- 1985-04-30 RO RO118585A patent/RO91023B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO91023A2 (en) | 1987-02-27 |
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