ES8601168A1 - 4-Hydroxy-2-methyl-2H-benzothiazine-3-carboxylic acid amide(s) prepn. - Google Patents
4-Hydroxy-2-methyl-2H-benzothiazine-3-carboxylic acid amide(s) prepn.Info
- Publication number
- ES8601168A1 ES8601168A1 ES539523A ES539523A ES8601168A1 ES 8601168 A1 ES8601168 A1 ES 8601168A1 ES 539523 A ES539523 A ES 539523A ES 539523 A ES539523 A ES 539523A ES 8601168 A1 ES8601168 A1 ES 8601168A1
- Authority
- ES
- Spain
- Prior art keywords
- benzothiazine
- prepn
- hydroxy
- methyl
- carboxylic acid
- 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
Abstract
The process comprises reaction of acid of formula (II) with benzosulphonyl chloride or sulphonyl p-toluene chloride in the presence e.g. of triethylamine at 0-40 deg.C, for subsequent reaction with an amine, e.g. an alkylamine to give amide of formula (I). R is a pentagonal or hexagonal heterocycle substituted phenyl lower alkyl. The R has one or more N, O or S atoms integrated in its ring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES539523A ES539523A0 (en) | 1984-12-28 | 1984-12-28 | PROCEDURE FOR OBTAINING AMIDES FROM THE ACID 4-HYDRO-XI-2-METHYL-2H-1,2-BENZOTIAZINE-3-CARBOXYLIC-1,1-DIOXIDE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES539523A ES539523A0 (en) | 1984-12-28 | 1984-12-28 | PROCEDURE FOR OBTAINING AMIDES FROM THE ACID 4-HYDRO-XI-2-METHYL-2H-1,2-BENZOTIAZINE-3-CARBOXYLIC-1,1-DIOXIDE |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8601168A1 true ES8601168A1 (en) | 1985-11-01 |
ES539523A0 ES539523A0 (en) | 1985-11-01 |
Family
ID=8488528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES539523A Granted ES539523A0 (en) | 1984-12-28 | 1984-12-28 | PROCEDURE FOR OBTAINING AMIDES FROM THE ACID 4-HYDRO-XI-2-METHYL-2H-1,2-BENZOTIAZINE-3-CARBOXYLIC-1,1-DIOXIDE |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES539523A0 (en) |
-
1984
- 1984-12-28 ES ES539523A patent/ES539523A0/en active Granted
Also Published As
Publication number | Publication date |
---|---|
ES539523A0 (en) | 1985-11-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19960603 |