DE3325853C2 - - Google Patents

Info

Publication number
DE3325853C2
DE3325853C2 DE19833325853 DE3325853A DE3325853C2 DE 3325853 C2 DE3325853 C2 DE 3325853C2 DE 19833325853 DE19833325853 DE 19833325853 DE 3325853 A DE3325853 A DE 3325853A DE 3325853 C2 DE3325853 C2 DE 3325853C2
Authority
DE
Germany
Prior art keywords
pyrazole
formamide
allopurinol
ammonia
synthesis
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
DE19833325853
Other languages
German (de)
English (en)
Other versions
DE3325853A1 (de
Inventor
Rene Dr. Kuengoldingen Ch Gnehm
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.)
Siegfried AG
Original Assignee
Siegfried AG
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 Siegfried AG filed Critical Siegfried AG
Publication of DE3325853A1 publication Critical patent/DE3325853A1/de
Application granted granted Critical
Publication of DE3325853C2 publication Critical patent/DE3325853C2/de
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
    • C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
    • C07D487/04—Ortho-condensed systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
DE19833325853 1983-03-21 1983-07-18 Verfahren zur herstellung von allopurinol Granted DE3325853A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH151883A CH654009A5 (de) 1983-03-21 1983-03-21 Verfahren zur herstellung von allopurinol.

Publications (2)

Publication Number Publication Date
DE3325853A1 DE3325853A1 (de) 1984-09-27
DE3325853C2 true DE3325853C2 (ja) 1989-06-01

Family

ID=4212313

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833325853 Granted DE3325853A1 (de) 1983-03-21 1983-07-18 Verfahren zur herstellung von allopurinol

Country Status (2)

Country Link
CH (1) CH654009A5 (ja)
DE (1) DE3325853A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102219787B (zh) * 2011-05-17 2013-06-05 重庆万利康制药有限公司 一种4-羟基吡唑并[3,4-d]嘧啶的合成方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2868803A (en) * 1956-02-10 1959-01-13 Ciba Pharm Prod Inc New pyrazoles and method of preparing same
GB854632A (en) * 1956-02-10 1960-11-23 Ciba Ltd Manufacture of pyrazoles
GB1252435A (ja) * 1968-02-02 1971-11-03

Also Published As

Publication number Publication date
DE3325853A1 (de) 1984-09-27
CH654009A5 (de) 1986-01-31

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8363 Opposition against the patent
8331 Complete revocation