ES400183A1 - 2-ketopiperazines processes for their preparation and compositions incorporating them - Google Patents

2-ketopiperazines processes for their preparation and compositions incorporating them

Info

Publication number
ES400183A1
ES400183A1 ES400183A ES400183A ES400183A1 ES 400183 A1 ES400183 A1 ES 400183A1 ES 400183 A ES400183 A ES 400183A ES 400183 A ES400183 A ES 400183A ES 400183 A1 ES400183 A1 ES 400183A1
Authority
ES
Spain
Prior art keywords
ketopiperazines
processes
preparation
lower alkyl
compositions incorporating
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
ES400183A
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.)
Kyorin Pharmaceutical Co Ltd
Original Assignee
Kyorin Pharmaceutical Co Ltd
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 JP958471A external-priority patent/JPS4915271B1/ja
Priority claimed from JP958571A external-priority patent/JPS4929194B1/ja
Application filed by Kyorin Pharmaceutical Co Ltd filed Critical Kyorin Pharmaceutical Co Ltd
Publication of ES400183A1 publication Critical patent/ES400183A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
    • C07D241/02—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings
    • C07D241/06—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having one or two double bonds between ring members or between ring members and non-ring members
    • C07D241/08—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having one or two double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

Procedure for obtaining substituted 4-benzyl-2-piperazinone, of general formula: ** (See formula) ** wherein R1 and R2 represent hydrogen, lower alkyl, and halogen, which can be changed independently; R3 is hydrogen and lower alkyl; and R4 represents hydrogen or lower alkyl; characterized in that it comprises benzylating a corresponding 2-piperazinone of the general formula: ** (See formula) ** wherein R4 is defined as above, with a benzyl halide of the general formula: ** (See formula) ** where R1, Re and R3 are defined as above and X is halogen. (Machine-translation by Google Translate, not legally binding)
ES400183A 1971-02-26 1972-02-25 2-ketopiperazines processes for their preparation and compositions incorporating them Expired ES400183A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP958471A JPS4915271B1 (en) 1971-02-26 1971-02-26
JP958571A JPS4929194B1 (en) 1971-02-26 1971-02-26

Publications (1)

Publication Number Publication Date
ES400183A1 true ES400183A1 (en) 1974-12-16

Family

ID=26344348

Family Applications (1)

Application Number Title Priority Date Filing Date
ES400183A Expired ES400183A1 (en) 1971-02-26 1972-02-25 2-ketopiperazines processes for their preparation and compositions incorporating them

Country Status (6)

Country Link
BE (1) BE779832A (en)
DE (1) DE2208057A1 (en)
ES (1) ES400183A1 (en)
FR (1) FR2126430A1 (en)
GB (1) GB1331928A (en)
HU (1) HU163119B (en)

Also Published As

Publication number Publication date
GB1331928A (en) 1973-09-26
HU163119B (en) 1973-06-28
BE779832A (en) 1972-06-16
FR2126430A1 (en) 1972-10-06
DE2208057A1 (en) 1972-09-07

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