JPS5059389A - - Google Patents
Info
- Publication number
- JPS5059389A JPS5059389A JP49109896A JP10989674A JPS5059389A JP S5059389 A JPS5059389 A JP S5059389A JP 49109896 A JP49109896 A JP 49109896A JP 10989674 A JP10989674 A JP 10989674A JP S5059389 A JPS5059389 A JP S5059389A
- Authority
- JP
- Japan
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D473/00—Heterocyclic compounds containing purine ring systems
- C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
- C07D473/04—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms
- C07D473/06—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3
- C07D473/12—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3 with methyl radicals in positions 1, 3, and 7, e.g. caffeine
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Pyridine Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2940673 | 1973-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5059389A true JPS5059389A (ja) | 1975-05-22 |
Family
ID=11226917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49109896A Pending JPS5059389A (ja) | 1973-09-26 | 1974-09-24 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3975389A (ja) |
| JP (1) | JPS5059389A (ja) |
| DE (1) | DE2445399A1 (ja) |
| FR (1) | FR2244521B1 (ja) |
| GB (1) | GB1428868A (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3113880A1 (de) * | 1981-04-07 | 1982-10-21 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von coffein |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2879271A (en) * | 1953-07-23 | 1959-03-24 | Knoll Ag | Basic derivatives of mono- and dimethyl xanthines, and a process of making same |
-
1974
- 1974-09-23 GB GB4126174A patent/GB1428868A/en not_active Expired
- 1974-09-23 DE DE19742445399 patent/DE2445399A1/de not_active Withdrawn
- 1974-09-23 US US05/508,571 patent/US3975389A/en not_active Expired - Lifetime
- 1974-09-24 JP JP49109896A patent/JPS5059389A/ja active Pending
- 1974-09-25 FR FR7432267A patent/FR2244521B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2244521A1 (ja) | 1975-04-18 |
| US3975389A (en) | 1976-08-17 |
| DE2445399A1 (de) | 1975-03-27 |
| GB1428868A (en) | 1976-03-17 |
| FR2244521B1 (ja) | 1978-07-28 |