JPS5253894A - Process for preparing 4-hydroxy-1h-pyrazolo 3,4-d pyrmidine - Google Patents
Process for preparing 4-hydroxy-1h-pyrazolo 3,4-d pyrmidineInfo
- 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
Links
Landscapes
- 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
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)
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)
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 |
-
1975
- 1975-10-30 JP JP13062075A patent/JPS5253894A/en active Pending
Patent Citations (1)
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)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5237785A (en) | Process for production of photovoltaic elements | |
JPS5253894A (en) | Process for preparing 4-hydroxy-1h-pyrazolo 3,4-d pyrmidine | |
JPS5239642A (en) | A process for preparing protocatechualdehyde | |
JPS51149287A (en) | Process for preparing 5-fluorouracil | |
JPS51113896A (en) | Process for preparing adenosine phosphoric acid derivatives | |
JPS53132530A (en) | Preparation of p-iodoaniline | |
JPS51118884A (en) | Process for preparing creatine amidinohydrolase | |
JPS5326823A (en) | Preparation of 6,13-dihydroquinacridone | |
JPS51113882A (en) | Method for preparing 1-(alpha -alkoxyalkyl)-uracil derivatives | |
JPS51151387A (en) | Process for preparing 2-alpha-maltosyl -maltosyl glucose | |
JPS5239638A (en) | Process for preparation of decabromobiphenylether | |
JPS5246017A (en) | Process for preparation of farnesyl acetates | |
JPS5249297A (en) | Proces for preparing anthydrotrmellitic acid esters | |
JPS5246023A (en) | Process for preparation of organosulfinic acid salts | |
JPS5295615A (en) | Preparation of phenylenediamine | |
JPS523061A (en) | Process for preparing 4-cyanoimidazole-5-carbamic acid esters | |
JPS51138650A (en) | Process for preparing optically active trans-cyclopentene-3,5,-diolmon oester | |
JPS51131522A (en) | A process for preparing perinone dyes | |
JPS51142515A (en) | Process for extracting s-adenozyl-methionine | |
JPS5239663A (en) | Process for preparing 1- nitroanthraquinone | |
JPS527979A (en) | Process for preparing phthalazines | |
JPS5257171A (en) | Process for preparing 2-amino (2) thiazoline-4-carboxylic acid | |
JPS51138681A (en) | Process for preparing 1-carboxybenzopyrans | |
JPS5223040A (en) | Process for preparation of styrenesulfonic acid ammonium salts | |
JPS51136780A (en) | Process for preparing polyioncomplex containing basic moi ety of nucleic acid |