GB1359108A - Pregna-4,6-dieno- -3,2-c- pyrazoles - Google Patents
Pregna-4,6-dieno- -3,2-c- pyrazolesInfo
- Publication number
- GB1359108A GB1359108A GB3451572A GB3451572A GB1359108A GB 1359108 A GB1359108 A GB 1359108A GB 3451572 A GB3451572 A GB 3451572A GB 3451572 A GB3451572 A GB 3451572A GB 1359108 A GB1359108 A GB 1359108A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pregna
- dieno
- pyridyl
- dimethyl
- reacting
- 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
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Steroid Compounds (AREA)
Abstract
1359108 Pregna-4,6-dieno-[3,2-c]pyrazoles MERCK & CO Inc 24 July 1972 [30 July 1971] 34515/72 Headings C2U and C2C The novel 2<SP>1</SP>-(4-pyridyl)-6,16α-dimethyl-20- oxo - 11#,17α,21 - trihydroxy - pregna - 4,6- dieno[3,2-c]-pyrazole is prepared by reacting 4- hydrazino-pyridine with 2-hydroxymethylene- 6,16α - dimethyl - 11# - hydroxy - 17,20 : 20,21- bismethylenedioxy - pregna - 4,6 - dien - 3 - one to produce the novel 2<SP>1</SP>-(4-pyridyl)-6,16a-dimethyl - 11# - hydroxy - 17,20 : 20,21 - bismethylenedioxy - pregna - 4,6 - dieno[3,2-c]- pyrazole and then reacting this with an acidic hydrolysing agent. 4 - Hydrazino - pyridine hydrochloride is prepared by reacting 4-chloropyridine with benzoyl hydrazine to give an N-(4-pyridyl)benzhydrazide of m.p. 225-231‹ C. and then hydrolysing this with hydrochloric acid. The novel trihydroxy-steroid is an antiinflammatory agent, and it may be made up into pharmaceutical compositions with suitable carriers.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16780271A | 1971-07-30 | 1971-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1359108A true GB1359108A (en) | 1974-07-10 |
Family
ID=22608892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3451572A Expired GB1359108A (en) | 1971-07-30 | 1972-07-24 | Pregna-4,6-dieno- -3,2-c- pyrazoles |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS544957B1 (en) |
| AU (1) | AU462875B2 (en) |
| BE (1) | BE786884A (en) |
| CH (1) | CH581669A5 (en) |
| FR (1) | FR2148037B1 (en) |
| GB (1) | GB1359108A (en) |
| IE (1) | IE36406B1 (en) |
| ZA (1) | ZA723885B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7307072A (en) * | 1972-06-09 | 1973-12-11 |
-
0
- BE BE786884D patent/BE786884A/en unknown
-
1972
- 1972-06-07 ZA ZA723885A patent/ZA723885B/en unknown
- 1972-06-07 IE IE78872A patent/IE36406B1/en unknown
- 1972-06-09 AU AU43298/72A patent/AU462875B2/en not_active Expired
- 1972-07-24 GB GB3451572A patent/GB1359108A/en not_active Expired
- 1972-07-26 FR FR7226917A patent/FR2148037B1/fr not_active Expired
- 1972-07-27 CH CH1121972A patent/CH581669A5/xx not_active IP Right Cessation
- 1972-07-28 JP JP7516272A patent/JPS544957B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IE36406B1 (en) | 1976-10-27 |
| FR2148037A1 (en) | 1973-03-11 |
| JPS544957B1 (en) | 1979-03-12 |
| AU462875B2 (en) | 1975-06-24 |
| CH581669A5 (en) | 1976-11-15 |
| FR2148037B1 (en) | 1975-08-08 |
| IE36406L (en) | 1973-01-30 |
| DE2237218B2 (en) | 1977-01-20 |
| BE786884A (en) | 1973-01-29 |
| DE2237218A1 (en) | 1973-02-08 |
| AU4329872A (en) | 1973-12-13 |
| ZA723885B (en) | 1974-01-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |