DE224981C - - Google Patents
Info
- Publication number
- DE224981C DE224981C DENDAT224981D DE224981DA DE224981C DE 224981 C DE224981 C DE 224981C DE NDAT224981 D DENDAT224981 D DE NDAT224981D DE 224981D A DE224981D A DE 224981DA DE 224981 C DE224981 C DE 224981C
- Authority
- DE
- Germany
- Prior art keywords
- theophylline
- piperazine
- compounds
- mol
- solution
- 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
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 claims description 16
- ZFXYFBGIUFBOJW-UHFFFAOYSA-N theophylline Chemical compound O=C1N(C)C(=O)N(C)C2=C1NC=N2 ZFXYFBGIUFBOJW-UHFFFAOYSA-N 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 8
- 229960000278 theophylline Drugs 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000007792 addition Methods 0.000 claims description 2
- -1 aliphatic diamines Chemical group 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 238000004090 dissolution Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000004985 diamines Chemical class 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
- VWSLLSXLURJCDF-UHFFFAOYSA-N 2-methyl-4,5-dihydro-1h-imidazole Chemical compound CC1=NCCN1 VWSLLSXLURJCDF-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 1
- 229940012189 methyl orange Drugs 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 150000004885 piperazines Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 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)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Medicines Containing Plant Substances (AREA)
- Compounds Of Unknown Constitution (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE223695T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE224981C true DE224981C (enrdf_load_stackoverflow) |
Family
ID=33035725
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT214376D Active DE214376C (enrdf_load_stackoverflow) | |||
| DENDAT217620D Active DE217620C (enrdf_load_stackoverflow) | |||
| DENDAT223695D Active DE223695C (enrdf_load_stackoverflow) | |||
| DENDAT224981D Active DE224981C (enrdf_load_stackoverflow) |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT214376D Active DE214376C (enrdf_load_stackoverflow) | |||
| DENDAT217620D Active DE217620C (enrdf_load_stackoverflow) | |||
| DENDAT223695D Active DE223695C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (4) | DE224981C (enrdf_load_stackoverflow) |
Cited By (6)
| 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 |
| DE908857C (de) * | 1951-05-28 | 1954-06-08 | Hoffmann La Roche | Verfahren zur Herstellung einer leicht loeslichen Verbindung aus Theophyllin und 3-Aminomethylpyridin |
| 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 |
| DE1207936B (de) * | 1961-03-17 | 1965-12-30 | Boehringer Sohn Ingelheim | Verfahren zur Herstellung wasserloeslicher Theophyllinverbindungen von bisquartaerenAmmoniumhydroxyden |
| DE2547916A1 (de) * | 1975-10-25 | 1977-05-05 | Zahnradfabrik Friedrichshafen | Ventil fuer die endabschaltung eines hydraulisch betaetigbaren servomotors, insbesondere von hydrostatischen kraftfahrzeug-servolenkanlagen |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6070295A (en) * | 1998-09-22 | 2000-06-06 | Bemis Manufacturing Company | Quick release toilet seat hinge with swivel |
-
0
- DE DENDAT214376D patent/DE214376C/de active Active
- DE DENDAT217620D patent/DE217620C/de active Active
- DE DENDAT223695D patent/DE223695C/de active Active
- DE DENDAT224981D patent/DE224981C/de active Active
Cited By (6)
| 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 |
| DE908857C (de) * | 1951-05-28 | 1954-06-08 | Hoffmann La Roche | Verfahren zur Herstellung einer leicht loeslichen Verbindung aus Theophyllin und 3-Aminomethylpyridin |
| DE1207936B (de) * | 1961-03-17 | 1965-12-30 | Boehringer Sohn Ingelheim | Verfahren zur Herstellung wasserloeslicher Theophyllinverbindungen von bisquartaerenAmmoniumhydroxyden |
| DE2547916A1 (de) * | 1975-10-25 | 1977-05-05 | Zahnradfabrik Friedrichshafen | Ventil fuer die endabschaltung eines hydraulisch betaetigbaren servomotors, insbesondere von hydrostatischen kraftfahrzeug-servolenkanlagen |
Also Published As
| Publication number | Publication date |
|---|---|
| DE217620C (enrdf_load_stackoverflow) | |
| DE214376C (enrdf_load_stackoverflow) | |
| DE223695C (enrdf_load_stackoverflow) |
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