DE264389C - - Google Patents
Info
- Publication number
- DE264389C DE264389C DENDAT264389D DE264389DA DE264389C DE 264389 C DE264389 C DE 264389C DE NDAT264389 D DENDAT264389 D DE NDAT264389D DE 264389D A DE264389D A DE 264389DA DE 264389 C DE264389 C DE 264389C
- Authority
- DE
- Germany
- Prior art keywords
- xanthine
- alkali
- bases
- free
- carboxylic acids
- 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.)
- Active
Links
- LRFVTYWOQMYALW-UHFFFAOYSA-N Xanthine Chemical class O=C1NC(=O)NC2=C1NC=N2 LRFVTYWOQMYALW-UHFFFAOYSA-N 0.000 claims 7
- 239000002585 base Substances 0.000 claims 3
- 229940075420 xanthine Drugs 0.000 claims 3
- 239000003513 alkali Substances 0.000 claims 2
- LOAUVZALPPNFOQ-UHFFFAOYSA-N quinaldic acid Chemical class C1=CC=CC2=NC(C(=O)O)=CC=C21 LOAUVZALPPNFOQ-UHFFFAOYSA-N 0.000 claims 2
- 239000002253 acid Substances 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- 229940053550 agents used for ADHD and nootropics psychostimulants Xanthine derivatives Drugs 0.000 claims 1
- 150000001447 alkali salts Chemical class 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 229940083747 low-ceiling diuretics Xanthine derivatives Drugs 0.000 claims 1
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
- C07D473/08—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 and 3, e.g. theophylline
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE264389C true DE264389C (es) |
Family
ID=521710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT264389D Active DE264389C (es) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE264389C (es) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE748005C (de) * | 1939-12-15 | 1944-10-23 | Verfahren zur Herstellung von leicht wasserloeslichen Verbindungen des Theophyllins bzw. Coffeins | |
| DE762284C (de) * | 1940-07-15 | 1952-07-24 | Byk Guldenwerke Chem Fab A G | Verfahren zur Erhoehung der Wasserloeslichkeit der Dimethylxanthine und ihrer Verbindungen |
| DE944518C (de) * | 1950-08-20 | 1956-06-14 | Byk Gulden Lomberg Chem Fab | Verfahren zur Herstellung von Loesungen von in 1, 3-Stellung substituierten Xanthinen |
-
0
- DE DENDAT264389D patent/DE264389C/de active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE748005C (de) * | 1939-12-15 | 1944-10-23 | Verfahren zur Herstellung von leicht wasserloeslichen Verbindungen des Theophyllins bzw. Coffeins | |
| DE762284C (de) * | 1940-07-15 | 1952-07-24 | Byk Guldenwerke Chem Fab A G | Verfahren zur Erhoehung der Wasserloeslichkeit der Dimethylxanthine und ihrer Verbindungen |
| DE944518C (de) * | 1950-08-20 | 1956-06-14 | Byk Gulden Lomberg Chem Fab | Verfahren zur Herstellung von Loesungen von in 1, 3-Stellung substituierten Xanthinen |
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