DE1150081B - Process for the preparation of pyrimido [5, 4-d] pyrimidines - Google Patents
Process for the preparation of pyrimido [5, 4-d] pyrimidinesInfo
- Publication number
- DE1150081B DE1150081B DET20034A DET0020034A DE1150081B DE 1150081 B DE1150081 B DE 1150081B DE T20034 A DET20034 A DE T20034A DE T0020034 A DET0020034 A DE T0020034A DE 1150081 B DE1150081 B DE 1150081B
- Authority
- DE
- Germany
- Prior art keywords
- pyrimido
- pyrimidine
- pyrimidines
- preparation
- tetrachloropyrimido
- 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
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Description
Verfahren zur Herstellung von Pyrimido [5,4-d] pyrimidinen Die Erfindung betrifft ein Verfahren zur Herstellung von Pyrimido [5, 4-d] pyrimidinen der allgemeinen Formel worin die Reste R gleich sind und Diallylamino-oder 2,3-Dioxypropylaminogruppen bedeuten.Process for the preparation of pyrimido [5,4-d] pyrimidines The invention relates to a process for the preparation of pyrimido [5, 4-d] pyrimidines of the general formula in which the radicals R are identical and are diallylamino or 2,3-dioxypropylamino groups.
Die neuen Pyrimido [5,4-d] pyrimidine werden dadurch hergestellt, daß man in an sich bekannter Weise 2,4,6,8-Tetrachlor-pyrimido [5,4-d] pyrimidin bei Raumtemperatur oder unter Kühlung in Anwesenheit eines säurebindenden Mittels mit einem Amin der allgemeinen Formel RH umsetzt. The new pyrimido [5,4-d] pyrimidines are produced by that 2,4,6,8-tetrachloropyrimido [5,4-d] pyrimidine is used in a manner known per se at room temperature or with cooling in the presence of an acid-binding agent with an amine of the general formula RH.
Säurebindende Mittel sind z. B. Alkalihydroxyde, Alkalicarbonate oder tertiare Amine ; gegebenenfalls kann auch mit einem Überschuß der basischen Reaktionskomponente gearbeitet werden. Acid binding agents are e.g. B. alkali hydroxides, alkali carbonates or tertiary amines; optionally can also with an excess of the basic Reaction component are worked.
Das Verfahren kann in Ab-oder Anwesenheit von für die Reaktion inerten Lösungs-bzw. Verdünnungsmitteln, z. B. Aceton, Dioxan, Benzol, Xylol oder Dimethylformamid und gegebenenfalls unter Anwendung von Druck durchgeführt werden. Wasser und Alkohole können in Abwesenheit von Alkalien ebenfalls als Lösungs-oder Verdünnungsmittel benutzt werden, da sie unter den angegebenen Bedingungen praktisch nicht mit 2, 4,6,8-Tetrachlorpyrimido [5,4-d] pyrimidin reagieren. Auch Diallylamin bzw. 2,3-Dioxypropylamin kann im Überschuß als Lösungs-oder Verdünnungsmittel verwendet werden. The process can be inert to the reaction in the absence or presence Solution or Diluents, e.g. B. acetone, dioxane, benzene, xylene or dimethylformamide and optionally carried out with the application of pressure. Water and alcohols can also be used as solvents or diluents in the absence of alkalis can be used, since under the given conditions they practically do not count with 2, 4,6,8-tetrachloropyrimido [5,4-d] pyrimidine react. Also diallylamine or 2,3-dioxypropylamine can be used in excess as a solvent or diluent.
Das als Ausgangsstoff verwendete 2,4,6,8-Tetrachlor-pyrimido [5,4-d] pyrimidin wird vorteilhaft durch Erhitzen von 2,4,6,8-Tetraoxy-pyrimido [5,4-d]-pyrimidin (das beispielsweise gemäß der deutschen Patentschrift 845 940 erhältlich ist) mit anorganischen Säurehalogeniden, vorzugsweise Phosphorhalogeniden, wie Phosphoroxychlorid oder Phosphorpentachlorid, hergestellt. The 2,4,6,8-tetrachloropyrimido [5,4-d] used as starting material Pyrimidine is advantageously made by heating 2,4,6,8-tetraoxypyrimido [5,4-d] -pyrimidine (which is available, for example, according to German Patent 845 940) with inorganic acid halides, preferably phosphorus halides, such as phosphorus oxychloride or phosphorus pentachloride.
Die neuen Pyrimido [5,4-d] pyrimidine der oben angegebenen allgemeinen Formel sind wertvolle Arzneimittel, die insbesondere herz-und kreislaufwirksam sind. Hinsichtlich der coronarerweiternden Wirkung sind sie dem Theophyllin, wie im folgenden gezeigt wird, überlegen. The new pyrimido [5,4-d] pyrimidines of the general given above Formula are valuable medicines that are particularly beneficial for the heart and circulatory system. In terms of coronary dilatation, they are theophylline, as follows is shown, consider.
Die Coronardurchblutung wurde am Hund mittels Rotameter nach der
Methode von Eckenhoff und Mitarbeitern (Amer. Journ. Physiol., 148, S. 582 [1947])
gemessen. Die Applikation der zu prüfenden Substanz erfolgte intracoronar in schwach
salzsaurer Lösung. Die Dosierung betrug 1 mg.
Die folgenden Beispiele sollen die Erfindung näher erläutern. The following examples are intended to explain the invention in more detail.
Beispiel 1 2,6-Dichlor-4,8-bis- (diallylamino)-pyrimido [5,4-d] pyrimidin Zu einer Lösung von 2,7 g (0,01 Mol) 2,4,6,8-Tetrachlor-pyrimido [5,4-d] pyrimidin in 50 ccm Dioxan wurden unter Umrühren 3,9 g (0,04 Mol) Diallylamin-(gelöst in 20 ccm Dioxan) gegeben. Das nach anfänglicher Trübung ölig ausfallende Reaktionsprodukt wurde nach Abdampfen des Lösungsmittels mit verdünnter Salzsäure digeriert, wobei es nach längerem Stehen erstarrte. Es wurde im Mörser zerrieben, abgesaugt und im Vakuumexsikkator getrocknet ; Ausbeute : 3,0 g (97°/0 der Theorie). Example 1 2,6-dichloro-4,8-bis (diallylamino) pyrimido [5,4-d] pyrimidine To a solution of 2.7 g (0.01 mol) of 2,4,6,8-tetrachloropyrimido [5,4-d] pyrimidine in 50 ccm of dioxane, 3.9 g (0.04 mol) of diallylamine (dissolved in 20 ccm of dioxane). The reaction product which precipitates oily after initial cloudiness was digested with dilute hydrochloric acid after evaporation of the solvent, wherein it froze after standing for a long time. It was ground in a mortar, sucked off and put in Vacuum desiccator dried; Yield: 3.0 g (97% of theory).
Nach zweimaligem Umkristallisieren aus Methanol wurde das 2,6-Dichlor-4,8-bis- (diallylamino)-pyrimido [5,4-d] pyrimidin in mikrokristallinen, meist büschelförmig verwachsenen Nädelchen (grünlichgelber Fluoreszenzschimmer) erhalten ; F. 100 bis 101°C (ab 98°C Sintern). After recrystallizing twice from methanol, the 2,6-dichloro-4,8-bis- (Diallylamino) pyrimido [5,4-d] pyrimidine in microcrystalline, mostly tufted form overgrown needles (greenish-yellow fluorescent shimmer) preserved; F. 100 to 101 ° C (from 98 ° C sintering).
Beispiel 2 2,6-Dichlor-4,8-bis- (2', 3'-dioxypropylamino)-pyrimido [5,4-d] pyrimidin Die Lösungen von 5,4 g (0,02 Mol) 2,4, 6,8-Tetrachlor-pyrimido [5,4-d] pyrimidin in 70 ccm Dioxan und 7,3 g (0,08 Mol) Dioxypropylamin in 70 ccm absolutem Alkohol wurden zusammengegeben. Nach vorübergehender Trübung schied sich das Reaktionsprodukt ölig ab. Nach Istündigem Stehen wurde das Lösungsmittel im Vakuum abgedampft. Das zurückgebliebene noch ölige Pyrimido [5,4-d] pyrimidinderivat wurde beim Behandeln mit 50 ccm Wasser fest. Es wurde abgesaugt, gewaschen und getrocknet (Vakuumexsikkator) ; Ausbeute : 4,8 g (630/o der Theorie). Nach dreimaligem Umkristallisieren aus Wasser wurde das 2,6-Dichlor-4,8-bis-(2', 3'-dioxypropylamino)-pyrimido [5,4-d] pyrimidin in farblosen, mikrokristallinen, meist büschelförmig verwachsenen Nädelchen erhalten ; F. 208 bis 210°C. Example 2 2,6-dichloro-4,8-bis (2 ', 3'-dioxypropylamino) pyrimido [5,4-d] pyrimidine The solutions of 5.4 g (0.02 mol) 2,4,6,8-tetrachloropyrimido [5,4-d] pyrimidine in 70 cc of dioxane and 7.3 g (0.08 mol) of dioxypropylamine in 70 cc absolute alcohol were combined. After a temporary clouding, it separated the reaction product becomes oily. After standing for one hour it became Solvent in vacuo evaporated. The remaining oily pyrimido [5,4-d] pyrimidine derivative was when treated with 50 ccm of water. It was filtered off with suction, washed and dried (Vacuum desiccator); Yield: 4.8 g (630% of theory). After three recrystallization from water the 2,6-dichloro-4,8-bis (2 ', 3'-dioxypropylamino) -pyrimido [5,4-d] pyrimidine in colorless, microcrystalline, usually clump-shaped fused needles obtain ; M.p. 208 to 210 ° C.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET20034A DE1150081B (en) | 1956-04-25 | 1956-04-25 | Process for the preparation of pyrimido [5, 4-d] pyrimidines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET20034A DE1150081B (en) | 1956-04-25 | 1956-04-25 | Process for the preparation of pyrimido [5, 4-d] pyrimidines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1150081B true DE1150081B (en) | 1963-06-12 |
Family
ID=7549539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DET20034A Pending DE1150081B (en) | 1956-04-25 | 1956-04-25 | Process for the preparation of pyrimido [5, 4-d] pyrimidines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1150081B (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE845940C (en) * | 1950-10-27 | 1952-08-07 | Gottwalt Franz Dr Fischer | Process for the preparation of derivatives of pyrimidinopyrimidine |
GB691427A (en) * | 1950-02-15 | 1953-05-13 | Wellcome Found | Improvements in or relating to purine derivatives of therapeutic value and to the manufacture thereof |
-
1956
- 1956-04-25 DE DET20034A patent/DE1150081B/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB691427A (en) * | 1950-02-15 | 1953-05-13 | Wellcome Found | Improvements in or relating to purine derivatives of therapeutic value and to the manufacture thereof |
DE845940C (en) * | 1950-10-27 | 1952-08-07 | Gottwalt Franz Dr Fischer | Process for the preparation of derivatives of pyrimidinopyrimidine |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1197466B (en) | Process for the preparation of new 5, 6, 7, 8-tetrahydropyrido- [4, 3-d] pyrimidines | |
DE1445186C3 (en) | 3,3'-di-2-imidazolin-2-yl-carbanilide | |
DE1150081B (en) | Process for the preparation of pyrimido [5, 4-d] pyrimidines | |
DE1670077C3 (en) | Adenosine derivatives and processes for their preparation | |
DE1150086B (en) | Process for the preparation of 2-morpholino-4, 8-bis (3'-methoxypropylamino) -pyrimido [5, 4-d] pyrimidine | |
DE1250828B (en) | Process for the preparation of the spasmolytically active 6,7,3 ', 4' - tetraethoxy-1-benzylidene-1,2,3,4 tetrahydroisoquinoline and its salts | |
DE2524284A1 (en) | Cardiovascular-active nitrogen substd. adenosine derivs. - prepd. by reacting amines with 6-(halo or mercapto)-9-purinyl ribosides | |
DE1150082B (en) | Process for the preparation of 2-chloro-pyrimido [5, 4-d] pyrimidines | |
DE1210883B (en) | Process for the preparation of derivatives of 7-oxycoumarin | |
DE1150087B (en) | Process for the preparation of 4,8-Dimorpholino-pyrimido- [5, 4-d] pyrimidines | |
DE1150088B (en) | Process for the preparation of 2,6-dimorpholino-4, 8-bis- (ª ‰ -propoxy-ethoxy) -pyrimido [5, 4-d] pyrimidine | |
DE1150083B (en) | Process for the preparation of 2,6-bis (diaethanolamino) -4, 8-bis-diallylamino) pyrimido [5, 4-d] pyrimidine | |
DE1470012A1 (en) | 7-Theophyllinyl-n-propane-omega-sulfonic acid and a process for its preparation | |
DE1151808B (en) | Process for the preparation of 2,6-bis- (1 ', 2', 5 ', 6'-tetrahydropyridino) -4,8-bis- (diaethanolamino) -pyrimido [5,4-d] pyrimidine | |
DE1150085B (en) | Process for the preparation of 2-diaethanolamino-4,8-bis- (allylamino) -pyrimido [5, 4-d] pyrimidine | |
DE1150681B (en) | Process for the preparation of 2,6-bis- (diaethanolamino) -pyrimido- [5, 4-d] pyrimidines | |
AT276404B (en) | Process for the production of new pteridines | |
DE1089763B (en) | Process for the production of 7- [ª ‰ -oxy-ª † - (methyl-ª ‰ -oxyaethylamino) -propyl] -theophylline-nicotinate | |
AT319960B (en) | Process for the preparation of new pyridazine compounds | |
DE1011888B (en) | Process for the preparation of theophylline derivatives | |
DE1151807B (en) | Process for the preparation of pyrimido [5,4-d] pyrimidines | |
DE1245973B (en) | Process for the preparation of amino-substituted l ^ -dihydro-i-hydroxy-lJ.S-triazines | |
DE1795828A1 (en) | ADENOSINE DERIVATIVES | |
DE803297C (en) | Process for the preparation of new derivatives of 1,8-naphthyridine | |
AT251585B (en) | Process for the preparation of new 6,7-dihydro-5H-pyrrolo- [3,4-d] -pyrimidines |