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)

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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
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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
Application number
ES442744A
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Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Patronato de Investigacion Cientifica y Tecnica
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Patronato de Investigacion Cientifica y Tecnica
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Application filed by Patronato de Investigacion Cientifica y Tecnica filed Critical Patronato de Investigacion Cientifica y Tecnica
Priority to ES442744A priority Critical patent/ES442744A1/en
Publication of ES442744A1 publication Critical patent/ES442744A1/en
Expired legal-status Critical Current

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  • 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)
ES442744A 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) Expired ES442744A1 (en)

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

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ID=8470384

Family Applications (1)

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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)

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ES (1) ES442744A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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

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FD1A Patent lapsed

Effective date: 19871215