ES420445A1 - Procedure to produce pirazolo (3, 4-d) pyrimidine-noxides. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure to produce pirazolo (3, 4-d) pyrimidine-noxides. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES420445A1
ES420445A1 ES420445A ES420445A ES420445A1 ES 420445 A1 ES420445 A1 ES 420445A1 ES 420445 A ES420445 A ES 420445A ES 420445 A ES420445 A ES 420445A ES 420445 A1 ES420445 A1 ES 420445A1
Authority
ES
Spain
Prior art keywords
group
pyrimidine
translation
procedure
machine
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
ES420445A
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.)
Kohjin Holdings Co Ltd
Kohjin Co
Original Assignee
Kohjin Holdings Co Ltd
Kohjin Co
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 Kohjin Holdings Co Ltd, Kohjin Co filed Critical Kohjin Holdings Co Ltd
Publication of ES420445A1 publication Critical patent/ES420445A1/en
Expired 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

Abstract

Procedure for producing pyrazolo [3,4-d] pyrimidine-N-oxides, having the formula: **(See formula)** in which R1 is a hydroxyl group, a mercapto group or an amino group and R2 is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, a hydroxyalkyl group having 1 to 4 carbon atoms, or an aryl group, characterized in that it comprises reacting a compound having the formula: **(See formula)** wherein X is an oxygen atom, a sulfur atom, or an imino group, and R2 is as defined above, with ethyl orthoformate, formamide, or formic acid. (Machine-translation by Google Translate, not legally binding)
ES420445A 1972-11-13 1973-11-10 Procedure to produce pirazolo (3, 4-d) pyrimidine-noxides. (Machine-translation by Google Translate, not legally binding) Expired ES420445A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11291072A JPS4970992A (en) 1972-11-13 1972-11-13

Publications (1)

Publication Number Publication Date
ES420445A1 true ES420445A1 (en) 1976-05-01

Family

ID=14598537

Family Applications (1)

Application Number Title Priority Date Filing Date
ES420445A Expired ES420445A1 (en) 1972-11-13 1973-11-10 Procedure to produce pirazolo (3, 4-d) pyrimidine-noxides. (Machine-translation by Google Translate, not legally binding)

Country Status (6)

Country Link
JP (1) JPS4970992A (en)
AU (1) AU6230173A (en)
BE (1) BE807198A (en)
DE (1) DE2356690A1 (en)
ES (1) ES420445A1 (en)
FR (1) FR2206320A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9424842D0 (en) * 1994-12-09 1995-02-08 British Tech Group Pharmaceutical compositions

Also Published As

Publication number Publication date
JPS4970992A (en) 1974-07-09
FR2206320A1 (en) 1974-06-07
AU6230173A (en) 1975-05-08
DE2356690A1 (en) 1974-05-30
BE807198A (en) 1974-03-01

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