GB763937A - Process for preparing dihydrostreptomycin salt of pyruvic acid isonicotinylhydrazone - Google Patents

Process for preparing dihydrostreptomycin salt of pyruvic acid isonicotinylhydrazone

Info

Publication number
GB763937A
GB763937A GB27031/54A GB2703154A GB763937A GB 763937 A GB763937 A GB 763937A GB 27031/54 A GB27031/54 A GB 27031/54A GB 2703154 A GB2703154 A GB 2703154A GB 763937 A GB763937 A GB 763937A
Authority
GB
United Kingdom
Prior art keywords
pyruvic acid
dihydrostreptomycin
salt
acid
isonicotinylhydrazone
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
GB27031/54A
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
Application filed by Lepetit SpA filed Critical Lepetit SpA
Publication of GB763937A publication Critical patent/GB763937A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C07D213/86—Hydrazides; Thio or imino analogues thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Saccharide Compounds (AREA)

Abstract

The dihydrostreptomycin salt of pyruvic acid isonicotinyl hydrazone of formula <FORM:0763937/IV(b)/1> is produced by reacting isonicotinic acid hydrazide with pyruvic acid in an anhydrous aliphatic carboxylic acid containing one to eight carbon atoms inclusive, e.g. glacial acetic acid, adding the precipitated product to a solution of dihydrostreptomycin in an anhydrous aliphatic alcohol containing one to eight carbon atoms, e.g. methyl alcohol, and precipitating from the resulting solution the dihydrostreptomycin salt of pyruvic acid isonicotinyl hydrazone by dilution with ethyl ether. Specification 742,602 is referred to.
GB27031/54A 1953-09-18 1954-09-17 Process for preparing dihydrostreptomycin salt of pyruvic acid isonicotinylhydrazone Expired GB763937A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT763937X 1953-09-18

Publications (1)

Publication Number Publication Date
GB763937A true GB763937A (en) 1956-12-19

Family

ID=11315961

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27031/54A Expired GB763937A (en) 1953-09-18 1954-09-17 Process for preparing dihydrostreptomycin salt of pyruvic acid isonicotinylhydrazone

Country Status (1)

Country Link
GB (1) GB763937A (en)

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