ES442744A1 - Procedure for obtaining 5,5-dioxide from 7-amino-3h, 4h, 4h-imidazo (4,5-c) (1,2,6) tiadiazin. (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for obtaining 5,5-dioxide from 7-amino-3h, 4h, 4h-imidazo (4,5-c) (1,2,6) tiadiazin. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES442744A1 ES442744A1 ES442744A ES442744A ES442744A1 ES 442744 A1 ES442744 A1 ES 442744A1 ES 442744 A ES442744 A ES 442744A ES 442744 A ES442744 A ES 442744A ES 442744 A1 ES442744 A1 ES 442744A1
- Authority
- ES
- Spain
- Prior art keywords
- dioxide
- amino
- see formula
- procedure
- thiadiazine
- 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
- Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
"PROCEDURE FOR OBTAINING 5,5-DIOXIDE FROM 7-AMINO-3H, 4H-IMIDAZO 4,5-c 1, 2, or TIADIAZINA" (1) ** (See formula) ** which procedure involves the completion of the following three reaction stages: Stage 1a: Reaction between 3,5-diamino-4H-1,2,6-thiadiazine-1,1-dioxide (II) with sodium nitrite and acetic acid . ** (See formula) ** When operating in an alkaline medium, the formation of 3,5-diamino-4-hydroxyimino-4H-1, 2,6,6-thiadiazine 1,1-dioxide (III) occurs ** (See formula) ** Step 2a: Reduction of compound III, obtained in the first stage with sodium dithionite in alkaline solution, to give 3, 4, 5-triamino-6H-1,2, o-thiadiazine 1,1-dioxide (IV). ** (See formula) ** Stage 3a: Treatment of compound IV, obtained in the second stage with potassium dithioformate in aqueous medium, to give 5,5-dioxide of 7-amino-3H, 4H-imi-dazo 4,5-c 1, 2, 6 -thiadiazine. (I) ** (See formula) ** (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES442744A ES442744A1 (en) | 1975-11-14 | 1975-11-14 | Procedure for obtaining 5,5-dioxide from 7-amino-3h, 4h, 4h-imidazo (4,5-c) (1,2,6) tiadiazin. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES442744A ES442744A1 (en) | 1975-11-14 | 1975-11-14 | Procedure for obtaining 5,5-dioxide from 7-amino-3h, 4h, 4h-imidazo (4,5-c) (1,2,6) tiadiazin. (Machine-translation by Google Translate, not legally binding) |
Publications (1)
Publication Number | Publication Date |
---|---|
ES442744A1 true ES442744A1 (en) | 1977-04-16 |
Family
ID=8470384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES442744A Expired ES442744A1 (en) | 1975-11-14 | 1975-11-14 | Procedure for obtaining 5,5-dioxide from 7-amino-3h, 4h, 4h-imidazo (4,5-c) (1,2,6) tiadiazin. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES442744A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2392577A1 (en) * | 2009-01-27 | 2011-12-07 | Consejo Superior de Investigaciones Científicas (CSIC) | New family of antichagasics derived from imidazo[4,5-c][1,2,6]thiadiazine 2,2-dioxide |
-
1975
- 1975-11-14 ES ES442744A patent/ES442744A1/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2392577A1 (en) * | 2009-01-27 | 2011-12-07 | Consejo Superior de Investigaciones Científicas (CSIC) | New family of antichagasics derived from imidazo[4,5-c][1,2,6]thiadiazine 2,2-dioxide |
EP2392577A4 (en) * | 2009-01-27 | 2012-08-29 | Consejo Superior Investigacion | New family of antichagasics derived from imidazo[4,5-c][1,2,6]thiadiazine 2,2-dioxide |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19871215 |