CH528528A - Process for preparing 4,7-dihydro-4-oxo-1H-pyrazolo (3,4-b) pyridine-5-carboxylic esters - Google Patents

Process for preparing 4,7-dihydro-4-oxo-1H-pyrazolo (3,4-b) pyridine-5-carboxylic esters

Info

Publication number
CH528528A
CH528528A CH710271A CH710271A CH528528A CH 528528 A CH528528 A CH 528528A CH 710271 A CH710271 A CH 710271A CH 710271 A CH710271 A CH 710271A CH 528528 A CH528528 A CH 528528A
Authority
CH
Switzerland
Prior art keywords
pyrazolo
dihydro
oxo
pyridine
preparing
Prior art date
Application number
CH710271A
Other languages
French (fr)
Inventor
Hoehn Hans
Original Assignee
Squibb & Sons Inc
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 Squibb & Sons Inc filed Critical Squibb & Sons Inc
Publication of CH528528A publication Critical patent/CH528528A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or 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
    • C07D231/38—Nitrogen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
    • C07D471/04—Ortho-condensed systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
CH710271A 1970-05-28 1971-05-13 Process for preparing 4,7-dihydro-4-oxo-1H-pyrazolo (3,4-b) pyridine-5-carboxylic esters CH528528A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4165270A 1970-05-28 1970-05-28

Publications (1)

Publication Number Publication Date
CH528528A true CH528528A (en) 1972-09-30

Family

ID=21917637

Family Applications (1)

Application Number Title Priority Date Filing Date
CH710271A CH528528A (en) 1970-05-28 1971-05-13 Process for preparing 4,7-dihydro-4-oxo-1H-pyrazolo (3,4-b) pyridine-5-carboxylic esters

Country Status (6)

Country Link
CA (1) CA944352A (en)
CH (1) CH528528A (en)
DE (1) DE2125631A1 (en)
FR (1) FR2100699B1 (en)
GB (1) GB1351522A (en)
HU (1) HU162493B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622326A (en) * 1985-12-23 1986-11-11 Hoechst-Roussel Pharmaceuticals Inc. 6H-isoxazolo(5,4-d)pyrazolo(3,4-b)pyridines, and their use as antihypertensive and analgesic agents

Also Published As

Publication number Publication date
CA944352A (en) 1974-03-26
FR2100699A1 (en) 1972-03-24
GB1351522A (en) 1974-05-01
FR2100699B1 (en) 1974-11-15
HU162493B (en) 1973-02-28
DE2125631A1 (en) 1971-12-09

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Legal Events

Date Code Title Description
PL Patent ceased