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
Application number
ES539523A
Other languages
Spanish (es)
Other versions
ES539523A0 (en
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.)
Laboratorio Fides SA
Original Assignee
Laboratorio Fides SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Laboratorio Fides SA filed Critical Laboratorio Fides SA
Priority to ES539523A priority Critical patent/ES539523A0/en
Publication of ES8601168A1 publication Critical patent/ES8601168A1/en
Publication of ES539523A0 publication Critical patent/ES539523A0/en
Granted legal-status Critical Current

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.
ES539523A 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 Granted ES539523A0 (en)

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)

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