CH421978A - Process for the preparation of pyridazone derivatives - Google Patents

Process for the preparation of pyridazone derivatives

Info

Publication number
CH421978A
CH421978A CH501863A CH501863A CH421978A CH 421978 A CH421978 A CH 421978A CH 501863 A CH501863 A CH 501863A CH 501863 A CH501863 A CH 501863A CH 421978 A CH421978 A CH 421978A
Authority
CH
Switzerland
Prior art keywords
preparation
pyridazone derivatives
pyridazone
derivatives
Prior art date
Application number
CH501863A
Other languages
German (de)
Inventor
Yoneda Fumio
Ohtaka Takayuki
Original Assignee
Chugai 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
Application filed by Chugai Pharmaceutical Co Ltd filed Critical Chugai Pharmaceutical Co Ltd
Publication of CH421978A publication Critical patent/CH421978A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D237/00—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings
    • C07D237/02—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings
    • C07D237/06—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
    • C07D237/10—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members 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
    • C07D237/14—Oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
CH501863A 1962-04-25 1963-04-22 Process for the preparation of pyridazone derivatives CH421978A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1589962 1962-04-25

Publications (1)

Publication Number Publication Date
CH421978A true CH421978A (en) 1966-10-15

Family

ID=11901610

Family Applications (1)

Application Number Title Priority Date Filing Date
CH501863A CH421978A (en) 1962-04-25 1963-04-22 Process for the preparation of pyridazone derivatives

Country Status (4)

Country Link
CH (1) CH421978A (en)
DE (1) DE1445585A1 (en)
FR (1) FR3338M (en)
GB (1) GB1019112A (en)

Also Published As

Publication number Publication date
DE1445585A1 (en) 1968-12-12
GB1019112A (en) 1966-02-02
FR3338M (en) 1965-05-31

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