ES296475A1 - Procedure for the preparation of new antibiotic substances (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the preparation of new antibiotic substances (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES296475A1
ES296475A1 ES296475A ES296475A ES296475A1 ES 296475 A1 ES296475 A1 ES 296475A1 ES 296475 A ES296475 A ES 296475A ES 296475 A ES296475 A ES 296475A ES 296475 A1 ES296475 A1 ES 296475A1
Authority
ES
Spain
Prior art keywords
translation
preparation
machine
legally binding
google translate
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
ES296475A
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.)
Gruppo Lepetit SpA
Original Assignee
Lepetit SpA
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
Priority claimed from GB6460/63A external-priority patent/GB1067421A/en
Application filed by Lepetit SpA filed Critical Lepetit SpA
Publication of ES296475A1 publication Critical patent/ES296475A1/en
Expired legal-status Critical Current

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  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

Process for the preparation of new antibiotic substances, especially rifamycin B hydrazides, comprising reacting in a solvent and in the presence of a water removing agent, rifamycin B with a compound of the formula: ** (See formula) ** wherein R is a member of the class consisting of hydrogen and alkyl groups, R1 is a member of the class consisting of hydrogen and alkyl groups, R2 is a member of the class consisting of hydrogen, alkyl groups and, when R1 is hydrogen , hydroxy-ethyl, aryl, alkylaryl, acyl and thiocarbamyl groups, R1 and R2 together with nitrogen form a heterocyclic ring. (Machine-translation by Google Translate, not legally binding)
ES296475A 1963-02-18 1964-02-15 Procedure for the preparation of new antibiotic substances (Machine-translation by Google Translate, not legally binding) Expired ES296475A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6460/63A GB1067421A (en) 1963-02-18 1963-02-18 Derivatives of rifamycin b

Publications (1)

Publication Number Publication Date
ES296475A1 true ES296475A1 (en) 1964-06-16

Family

ID=9814875

Family Applications (1)

Application Number Title Priority Date Filing Date
ES296475A Expired ES296475A1 (en) 1963-02-18 1964-02-15 Procedure for the preparation of new antibiotic substances (Machine-translation by Google Translate, not legally binding)

Country Status (3)

Country Link
AT (1) AT245732B (en)
DK (1) DK105273C (en)
ES (1) ES296475A1 (en)

Also Published As

Publication number Publication date
AT245732B (en) 1966-03-10
DK105273C (en) 1966-09-12

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