DK131938C - PROCEDURE FOR THE PREPARATION OF 4-HYDROXY-1H-PYRAZOLO (3,4-D) PYRIMIDINE - Google Patents
PROCEDURE FOR THE PREPARATION OF 4-HYDROXY-1H-PYRAZOLO (3,4-D) PYRIMIDINEInfo
- Publication number
- DK131938C DK131938C DK100270A DK100270A DK131938C DK 131938 C DK131938 C DK 131938C DK 100270 A DK100270 A DK 100270A DK 100270 A DK100270 A DK 100270A DK 131938 C DK131938 C DK 131938C
- Authority
- DK
- Denmark
- Prior art keywords
- pyrazolo
- pyrimidine
- hydroxy
- procedure
- preparation
- Prior art date
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
-
- 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
- C07D231/44—Oxygen and nitrogen or sulfur and nitrogen atoms
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HUEE001630 | 1969-02-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
DK131938B DK131938B (en) | 1975-09-29 |
DK131938C true DK131938C (en) | 1976-03-01 |
Family
ID=10995293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK100270A DK131938C (en) | 1969-02-28 | 1970-02-27 | PROCEDURE FOR THE PREPARATION OF 4-HYDROXY-1H-PYRAZOLO (3,4-D) PYRIMIDINE |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT299209B (en) |
DK (1) | DK131938C (en) |
NL (1) | NL7002761A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2538077C3 (en) * | 1975-08-27 | 1981-05-27 | Tad Pharmazeutisches Werk Gmbh, 2190 Cuxhaven | Process for the preparation of 4-hydroxypyrazolo- (3,4-d) -pyrimidine |
-
1970
- 1970-02-19 AT AT149770A patent/AT299209B/en not_active IP Right Cessation
- 1970-02-26 NL NL7002761A patent/NL7002761A/en unknown
- 1970-02-27 DK DK100270A patent/DK131938C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK131938B (en) | 1975-09-29 |
NL7002761A (en) | 1970-09-01 |
AT299209B (en) | 1972-06-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUP | Patent expired |