CH176485A - Process for the preparation of 2-methyl-4-aminoquinolyl-6-melamine. - Google Patents
Process for the preparation of 2-methyl-4-aminoquinolyl-6-melamine.Info
- Publication number
- CH176485A CH176485A CH176485DA CH176485A CH 176485 A CH176485 A CH 176485A CH 176485D A CH176485D A CH 176485DA CH 176485 A CH176485 A CH 176485A
- Authority
- CH
- Switzerland
- Prior art keywords
- methyl
- melamine
- aminoquinolyl
- preparation
- hydrochloride
- Prior art date
Links
- 229920000877 Melamine resin Polymers 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 5
- 238000002360 preparation method Methods 0.000 title description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- 150000001875 compounds Chemical group 0.000 claims description 5
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- MGNCLNQXLYJVJD-UHFFFAOYSA-N cyanuric chloride Chemical compound ClC1=NC(Cl)=NC(Cl)=N1 MGNCLNQXLYJVJD-UHFFFAOYSA-N 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 229940126601 medicinal product Drugs 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 229960000583 acetic acid Drugs 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000012362 glacial acetic acid Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- -1 alkogyl Chemical group 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 125000000467 secondary amino group Chemical class [H]N([*:1])[*:2] 0.000 description 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Natural products CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- QPJDMGCKMHUXFD-UHFFFAOYSA-N cyanogen chloride Chemical compound ClC#N QPJDMGCKMHUXFD-UHFFFAOYSA-N 0.000 description 1
- 150000007973 cyanuric acids Chemical class 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 235000019439 ethyl acetate Nutrition 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 150000003222 pyridines Chemical class 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000001302 tertiary amino group Chemical group 0.000 description 1
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
Verfahren zur Herstellung von 2-Methyl-4-aminochinolyl-6-melamin. Durch .die Patente Nr. 166787, 170877 und 173620 ist die Darstellung eines pri mären Py-Bz-Diaminochinolins bezw. eines in der Bz-Aminogruppe mit einer ein- bezw. zweibasischen Säure acylierten Abkömm lings desselben geschützt. Diese Erzeugnisse zeichnen sich besonders durch ihre bakteri zide Wirkung in vitro und in vivo aus.
Es wurde nun gefunden, dass man zu neuen Verbindungen gelangen kann, die neben den wertvollen Eigenschaften der in den oben genannten Patenten beschriebenen Erzeugnisse sich noch durch Wirksamkeit bei Protozoenerkrankungen auszeichnen, wenn man Cyanurhalogenid mit primären oder sekundären Py-Bz-Diaminochinolinen, Ammo niak, primären oder sekundären Aminen und Hydroxyl oder Alkoxyl austauschenden Mit teln in beliebiger Auswahl und Reihenfolge umsetzt, jedoch so, dass mindestens einmal ein Py-Bz-Diaminochinolin zur Einwirkung belangt,
oder dass man in den Pyridinkern eines Bz-Aminochinolins, dessen Bz-Amino- gruppe durch einen Cyanurrest substituiert ist, nach den üblichen Methodeneine Amino- gruppe einführt.
Da bekanntlich die drei basische Cyanursäure ihre Säurewirkung stufenweise ausüben kann, so hat man die Möglichkeit, neben einem Py-Aminochinolyl- aminrest noch andere Gruppen, wie Hydro- xyl, Alkogyl, primäre, sekundäre oder ter tiäre Aminogruppen usw. in den Cyanurring einzuführen.
Zweckmässig geht man von Cyanurchlorid aus und ersetzt darin die Chloratome ganz oder teilweise in beliebiger Auswahl und Reihenfolge durch die erwähn ten Reste, jedoch mindestens ein Chloratom durch einen Py-Aminochinolylaminrest.
Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung von 2-Methyl- 4-aminochinolyl-6-melamin, .das dadurch ge kennzeichnet ist, dass man ,ein Mol 4. 6-Di- amino-2-methylchinolin mit einem Mol Cya- rurchlorid umsetzt und das so erhaltene Hydrochlorid des (2-Methyl-4-aminocliinolyl- 6)-dichlorcyanuramids mit Ammoniak be handelt.
Die neue Verbindung bildet ein wasser lösliches Hydrochlorid, sie schmilzt bei 267 unter Dunkelfärbung. Sie soll als Arznei mittel Verwendung finden.
<I>Beispiel:</I> (2-Methyl-4-aminochinolyl-6) -dichlorcya- nuramid.
10,5 gr 4.6-Diaminochinaldinbase (Pa tent Nr. 166787, Beispiel 1), gelöst in 60 cm' Eisessig, werden bei 10 bis 15 unter Rüh ren langsam in eine Lösung von 12 gr Cya- nurchlorid* in 100 cm' Eisessig eingegossen.
Dabei bildet sich das Hydrochlorid des (2-Methyl-4-aminochinolyl - 6) -dichlorcyanur- amids als farbloser Niederschlag, der ab gesaugt und mit Eisessig und Äther ge waschen wird, in einer Menge von 20 gr. Die Verbindung erleidet beim Erhitzen bis <B>300'</B> ausser einer schwachen Rotfärbung keine Veränderung. Oberhalb 100 gibt sie Essigsäure ab. Sie löst sich leicht in Wasser; Natriumkarbonat fällt aus dieser Lösung die Base als Gallerte.
Die gleiche Verbindung wird als Hydro- chlorid auch erhalten, wenn man 1 Mol des Diaminochinaldins in Aceton, gelöst bei etwa 0 , zu der ätherischen Lösung von 1 Mol Cyanurchlorid gibt. Die Ausbeute entspricht fast der Theorie.
2-Methyl-4-aminochinolyl-6-melamin. 10 gr (2-Methyl-4-aminochinolyl-6)-di- chlorcyanuramidhydrochlorid werden mit 50 cm' alkoholischem Ammoniak 3 Stunden auf 120 bis 125 erhitzt. Darnach wird der Rohrinhalt zur Trockne verdampft. Der Rückstand, der offenbar ein salzsaures Salz des gebildeten 2-Methyl-4-aminochinolyl-6- melamins darstellt, wird in heissem Wasser aufgenommen und heiss mit etwa dem glei chen Volumen gesättigter Natriumchlorid- lösung versetzt.
Beim Erkalten scheidet sich das salzsaure Salz aus, das abgesaugt, mit wenig wässerigem Aceton und darauf mit reinem Aceton gewaschen wird. Ausbeute 6 gr. Das Salz löst sich leicht in Wasser mit neutraler Reaktion, auch in 2 n-Salzsäure ist es erheblich löslich unter teilweisem Ver schmieren. Durch Natronlauge wird die farb lose Base gefällt, die nach dem Umkristalli- sieren aus Wasser und Äthanol als feines Pulver erhalten wird. Sie schmilzt bei 267 unter Dunkelfärbung.
Process for the preparation of 2-methyl-4-aminoquinolyl-6-melamine. By. The patents No. 166787, 170877 and 173620 the representation of a primary Py-Bz-diaminochinoline respectively. one in the Bz amino group with a one or. dibasic acid acylated derivative of the same protected. These products are particularly characterized by their bactericidal effect in vitro and in vivo.
It has now been found that new compounds can be obtained which, in addition to the valuable properties of the products described in the above-mentioned patents, are also characterized by effectiveness in protozoal diseases if cyanuric halide is combined with primary or secondary Py-Bz-diaminoquinolines, ammonia, primary or secondary amines and hydroxyl or alkoxyl exchanging agents in any choice and order, but in such a way that at least once a Py-Bz-diaminoquinoline is involved,
or that one introduces an amino group into the pyridine nucleus of a Bz-aminoquinoline, the Bz-amino group of which is substituted by a cyanuric radical, according to the usual methods.
Since it is known that the three basic cyanuric acids can exert their acidic effect in stages, it is possible to introduce other groups such as hydroxyl, alkogyl, primary, secondary or tertiary amino groups, etc. into the cyanuric ring in addition to a py-aminoquinolylamine residue.
It is expedient to start from cyanuric chloride and replace the chlorine atoms in it in whole or in part in any choice and order by the radicals mentioned, but at least one chlorine atom by a py-aminoquinolylamine radical.
The subject of the present patent is a process for the preparation of 2-methyl-4-aminochinolyl-6-melamine, which is characterized in that one mole of 4. 6-di-amino-2-methylquinoline with one mole of cyano rurchlorid and the hydrochloride of (2-methyl-4-aminocliinolyl- 6) -dichlorcyanuramids thus obtained is treated with ammonia.
The new compound forms a water-soluble hydrochloride, it melts at 267 and turns dark. It should be used as a medicament.
<I> Example: </I> (2-Methyl-4-aminochinolyl-6) -dichlorocya- nuramide.
10.5 g of 4,6-diaminochinaldine base (Patent No. 166787, Example 1), dissolved in 60 cm 'of glacial acetic acid, are slowly poured into a solution of 12 g of cyanogen chloride * in 100 cm' of glacial acetic acid at 10 to 15 times with stirring .
The hydrochloride of (2-methyl-4-aminochinolyl - 6) -dichlorocyanuramide forms as a colorless precipitate, which is sucked off and washed with glacial acetic acid and ether in an amount of 20 g. The compound suffers up to when heated <B> 300 '</B> apart from a faint red color no change. Above 100 it gives off acetic acid. It dissolves easily in water; Sodium carbonate precipitates the base as a jelly from this solution.
The same compound is also obtained as hydrochloride if 1 mol of the diaminochinaldine in acetone, dissolved at about 0, is added to the ethereal solution of 1 mol of cyanuric chloride. The yield almost corresponds to the theory.
2-methyl-4-aminoquinolyl-6-melamine. 10 grams of (2-methyl-4-aminochinolyl-6) -dichlorocyanuramide hydrochloride are heated to 120-125 with 50 cm 'of alcoholic ammonia for 3 hours. The pipe contents are then evaporated to dryness. The residue, which is evidently a hydrochloric acid salt of the 2-methyl-4-aminoquinolyl-6-melamine formed, is taken up in hot water and about the same volume of saturated sodium chloride solution is added while hot.
When it cools, the hydrochloric acid salt separates out, which is filtered off with suction, washed with a little aqueous acetone and then with pure acetone. Yield 6 gr. The salt dissolves easily in water with a neutral reaction, it is also considerably soluble in 2N hydrochloric acid with partial smear. The colorless base is precipitated with caustic soda and obtained as a fine powder after recrystallization from water and ethanol. It melts at 267 with a dark color.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE176485X | 1932-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH176485A true CH176485A (en) | 1935-04-15 |
Family
ID=5698161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH176485D CH176485A (en) | 1932-11-04 | 1933-10-04 | Process for the preparation of 2-methyl-4-aminoquinolyl-6-melamine. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH176485A (en) |
-
1933
- 1933-10-04 CH CH176485D patent/CH176485A/en unknown
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