ES399674A1 - Procedure for the preparation of an N-methyled indazolic amine. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the preparation of an N-methyled indazolic amine. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES399674A1
ES399674A1 ES399674A ES399674A ES399674A1 ES 399674 A1 ES399674 A1 ES 399674A1 ES 399674 A ES399674 A ES 399674A ES 399674 A ES399674 A ES 399674A ES 399674 A1 ES399674 A1 ES 399674A1
Authority
ES
Spain
Prior art keywords
methyl
indazole
tetrahydro
translation
amine
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
ES399674A
Other languages
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.)
Sociedad Espanola de Especialidades Farmaco Terapeuticas SA
Original Assignee
Sociedad Espanola de Especialidades Farmaco Terapeuticas 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 Sociedad Espanola de Especialidades Farmaco Terapeuticas SA filed Critical Sociedad Espanola de Especialidades Farmaco Terapeuticas SA
Priority to ES399674A priority Critical patent/ES399674A1/en
Publication of ES399674A1 publication Critical patent/ES399674A1/en
Expired legal-status Critical Current

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  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

Process for the preparation of an N-methylated indazole amine, characterized by transforming 3-amino-2-methyl-4,5,6,7-tetrahydro-indazole into 3-methylamino-2-methyl-4,5., 6,7-tetrahydro-indazole, by a first transformation of 3-amino-2-methyl-4,5,6,7-tetrahydro-indazole into its corresponding para-toluenesulfonamide by means of para-toluenesulfonyl chloride, successively its sodium salt, which with methyl sulfate, provides the 3-N-methyl p-toluenesulfonamide of 2-methyl-4,5,6,7-tetrahydro-indazole and finally hydrolyzing the N-methylated sulfonamide with concentrated sulfuric acid and acid glacial acetic acid, in order to obtain 3-methylamino-2-methyl-4,5,6,7-tetrahydro-indazole sulphate, preceded by separating the corresponding base from the sulfate, neutralizing, alkalinizing and successively extracting with ether. (Machine-translation by Google Translate, not legally binding)
ES399674A 1972-02-11 1972-02-11 Procedure for the preparation of an N-methyled indazolic amine. (Machine-translation by Google Translate, not legally binding) Expired ES399674A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES399674A ES399674A1 (en) 1972-02-11 1972-02-11 Procedure for the preparation of an N-methyled indazolic amine. (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES399674A ES399674A1 (en) 1972-02-11 1972-02-11 Procedure for the preparation of an N-methyled indazolic amine. (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES399674A1 true ES399674A1 (en) 1974-11-16

Family

ID=8460275

Family Applications (1)

Application Number Title Priority Date Filing Date
ES399674A Expired ES399674A1 (en) 1972-02-11 1972-02-11 Procedure for the preparation of an N-methyled indazolic amine. (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES399674A1 (en)

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