JPS5253894A - Process for preparing 4-hydroxy-1h-pyrazolo 3,4-d pyrmidine - Google Patents

Process for preparing 4-hydroxy-1h-pyrazolo 3,4-d pyrmidine

Info

Publication number
JPS5253894A
JPS5253894A JP13062075A JP13062075A JPS5253894A JP S5253894 A JPS5253894 A JP S5253894A JP 13062075 A JP13062075 A JP 13062075A JP 13062075 A JP13062075 A JP 13062075A JP S5253894 A JPS5253894 A JP S5253894A
Authority
JP
Japan
Prior art keywords
pyrmidine
pyrazolo
hydroxy
preparing
formamude
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.)
Pending
Application number
JP13062075A
Other languages
Japanese (ja)
Inventor
Susumu Sato
Fumio Kita
Tatsuhiko Katori
Yoshichika Odaka
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.)
ESUESU SEIYAKU KK
SSP Co Ltd
Original Assignee
ESUESU SEIYAKU KK
SSP 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 ESUESU SEIYAKU KK, SSP Co Ltd filed Critical ESUESU SEIYAKU KK
Priority to JP13062075A priority Critical patent/JPS5253894A/en
Publication of JPS5253894A publication Critical patent/JPS5253894A/en
Pending legal-status Critical Current

Links

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  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

PURPOSE: To prepare allopurinol, a medicine for gout, with a high yield, by reacting 3-amino-4-carbalkoxy-pyrazole and formamude under specific conditions.
COPYRIGHT: (C)1977,JPO&Japio
JP13062075A 1975-10-30 1975-10-30 Process for preparing 4-hydroxy-1h-pyrazolo 3,4-d pyrmidine Pending JPS5253894A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13062075A JPS5253894A (en) 1975-10-30 1975-10-30 Process for preparing 4-hydroxy-1h-pyrazolo 3,4-d pyrmidine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13062075A JPS5253894A (en) 1975-10-30 1975-10-30 Process for preparing 4-hydroxy-1h-pyrazolo 3,4-d pyrmidine

Publications (1)

Publication Number Publication Date
JPS5253894A true JPS5253894A (en) 1977-04-30

Family

ID=15038573

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13062075A Pending JPS5253894A (en) 1975-10-30 1975-10-30 Process for preparing 4-hydroxy-1h-pyrazolo 3,4-d pyrmidine

Country Status (1)

Country Link
JP (1) JPS5253894A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5066550A (en) * 1989-07-27 1991-11-19 Yazaki Corporation Electric contact
CN102219787A (en) * 2011-05-17 2011-10-19 重庆万利康制药有限公司 Method for synthesizing 4-hydroxy pyrazolo[3,4-d]pyrimidine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU363704A1 (en) * 1971-01-20 1972-12-25 METHOD OF OBTAINING 4-OXIPIRZOLO- [3,4 - ^ / 1-P IRIMIDINE

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU363704A1 (en) * 1971-01-20 1972-12-25 METHOD OF OBTAINING 4-OXIPIRZOLO- [3,4 - ^ / 1-P IRIMIDINE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5066550A (en) * 1989-07-27 1991-11-19 Yazaki Corporation Electric contact
CN102219787A (en) * 2011-05-17 2011-10-19 重庆万利康制药有限公司 Method for synthesizing 4-hydroxy pyrazolo[3,4-d]pyrimidine

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