CH199672A - Process for the preparation of a double compound from 3,5-dimethylisoxazole-4-carboxylic acid dimethylamide and B-oxynaphthoic acid calcium. - Google Patents
Process for the preparation of a double compound from 3,5-dimethylisoxazole-4-carboxylic acid dimethylamide and B-oxynaphthoic acid calcium.Info
- Publication number
- CH199672A CH199672A CH199672DA CH199672A CH 199672 A CH199672 A CH 199672A CH 199672D A CH199672D A CH 199672DA CH 199672 A CH199672 A CH 199672A
- Authority
- CH
- Switzerland
- Prior art keywords
- dimethylisoxazole
- carboxylic acid
- calcium
- double compound
- preparation
- Prior art date
Links
Landscapes
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Description
Verfahren zur Herstellung einer Doppelverbindung aus 3,6-Dimethylisoaazol- 4-earbonsäuredimethylamid und R-ogynaphthoesaurem Caleium. Es wurde gefunden, .dass die als Arznei mittel wertvollen sekundären Amide von Tsogazolearbonsäuren (Patent 1-85280) mit Calciumsalzen aromatischer Ogysäuren,
sowie mit Calciumrhodanid kristallisierte Doppel verbindungen zu bilden vermögen. Die Be deutung dieser neuen Doppelverbindungen besteht vor allem darin, dass die zumeist flüs- sigenoder tief schmelzenden sekundären Amide der 3,5-Dimethylisoxazol-4-carbon- säure in feste, beständige Körper übergeführt werden.
Als weiterer Vorteil ,der neuen Ver bindungen ist hervorzuheben"dass der bittere bezw. salzige Gezehma-ck der Ausgangsstoffe durch die Verbindung mit Calciumsalmn herabgesetzt wird, oft .ganz verschwindet.
Die Darstellung ,der neuen Verbindungen kann durch Zusammenbringen der Kompo nenten in geeigneten Lösungsmitteln erfol gen. Dabei kristallisiert die Doppelverbin dung häufig unmittelbar aus, oder eie wird durch Zusatz anderer Lösungsmittel-, in denen sie schwer löslich ist, ausgefällt.
Sie kann auch durch Abdampfen des Lösungs mittels ,gewonnen werden. Statt ,das Calcium- salz als solches zu verwenden, kann dieses auch in der Lösung, z. B. aus Caleiumkarbo- nat und der Säure, unmittelbar .gebildet wer den.
Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung einer Doppel verbindung aus 3,5-Dimethylisogazol-4-oar- bonsäuredimethylamid und ss-ogynaphthoe- saurem Cascium, welches dadurch ,gekenn zeichnet ist, dass man auf 3;5-Dimethylisoga- zol-4-carbo#nssäure-dimethylamid ss-ogynaph- thoesaures Calcium einwirken lässt.
Die neue Doppelverbindung aus 3,5-Di- methylisogazol - 4 - earbonsäuredimethylamid und ss-ogynaphthoesaurem Galcium kTistal- lisiert in Prismen. Sie ist sehwer löslich ia Wasser, leicht löslich in Alkohol und soll als Arzneimittel verwendet werden.
Beispiel: In eine Lösung von<B>168</B> Teilen 3,5-Di- methylisoxazol -4- carbonsäure-dimethylamid in 500 Teilen Alkohol werden bei 60 bis <B>70'</B> 228 Teile ss-oxynaphthoeaaures Calcium ein getragen. Das Calciumsalz löst sich rasch auf.
Durch Zusatz von 1000 Teilen Wasser fällt eine Doppelverbindung aus einem Mol 3,5 - Dimethylisoxazol- 4 -carbonsäure - dime- thylamid und einem Mol ss-oxynaphthoesau- rem Caleium kristallisiert aus.
Process for the preparation of a double compound from 3,6-dimethylisoaazole-4-carboxylic acid dimethylamide and R-ogynaphthoesaurem Caleium. It has been found that the secondary amides of tsogazolearboxylic acids (patent 1-85280), which are valuable as medicinal products, with calcium salts of aromatic ogy acids,
as well as being able to form double compounds crystallized with calcium rhodanide. The main significance of these new double compounds is that the mostly liquid or low-melting secondary amides of 3,5-dimethylisoxazole-4-carboxylic acid are converted into solid, stable bodies.
Another advantage of the new compounds is to be emphasized "that the bitter or salty texture of the starting materials is reduced by the connection with calcium salmon, often disappears completely.
The preparation of the new compounds can take place by bringing the components together in suitable solvents. The double compound often crystallizes out immediately, or it is precipitated by adding other solvents in which it is sparingly soluble.
It can also be obtained by evaporating the solvent. Instead of using the calcium salt as such, it can also be in the solution, e.g. B. from Caleium carbonate and the acid, directly. Formed who.
The subject of the present patent is a process for the production of a double compound from 3,5-dimethylisogazole-4-oar- bonsäuredimethylamid and ss-ogynaphthoe- acidic cascium, which is characterized in that 3; 5-dimethylisogazole 4-carbo # nssäure-dimethylamid ss-ogynaphthoesaures calcium lets act.
The new double compound of 3,5-dimethylisogazole-4-carboxylic acid dimethylamide and ss-ogynaphthoic acid calcium kTistallizes in prisms. It is very soluble ia water, easily soluble in alcohol and should be used as a medicine.
Example: In a solution of 168 parts of 3,5-dimethylisoxazole -4-carboxylic acid dimethylamide in 500 parts of alcohol, at 60 to 70 parts, 228 parts of ss-oxynaphthoic acid are obtained Calcium a worn. The calcium salt dissolves quickly.
By adding 1000 parts of water, a double compound of one mole of 3,5-dimethylisoxazole-4-carboxylic acid-dimethylamide and one mole of β-oxynaphthoic acid crystallizes out.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE199672X | 1935-11-22 | ||
| CH190545T | 1936-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH199672A true CH199672A (en) | 1938-08-31 |
Family
ID=25722001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH199672D CH199672A (en) | 1935-11-22 | 1936-09-09 | Process for the preparation of a double compound from 3,5-dimethylisoxazole-4-carboxylic acid dimethylamide and B-oxynaphthoic acid calcium. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH199672A (en) |
-
1936
- 1936-09-09 CH CH199672D patent/CH199672A/en unknown
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