CH189751A - Process for the preparation of an aqueous digitalislanata glycoside solution. - Google Patents
Process for the preparation of an aqueous digitalislanata glycoside solution.Info
- Publication number
- CH189751A CH189751A CH189751DA CH189751A CH 189751 A CH189751 A CH 189751A CH 189751D A CH189751D A CH 189751DA CH 189751 A CH189751 A CH 189751A
- Authority
- CH
- Switzerland
- Prior art keywords
- digitalislanata
- aqueous
- glycoside
- preparation
- solution
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J19/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 by a lactone ring
- C07J19/005—Glycosides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Saccharide Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
Verfahren zur Herstellung einer wässerigen Digitalislanata-Glykosidlösung. Es wurde festgestellt, dass das wasser lösliche ss-Pyridincarbonsäurediäthylamid er möglicht aus Digitalislanata-Glykosid (Lana- digin) eine wässerige Digitalislanata-Glykosid- lösung herzustellen, indem der dreiwertige Stickstoff im Pyridinkern des P-Pyridincarbon- säurediäthylamids offenbar die Tendenz hat, in den fünfwertigen Stickstoff überzugehen,
auf diese Art basisch wirkt und so die sauren Gruppen des Lanadigins an sich zu addieren vermag. Der so entstehende neue Körper ist wasserlöslich, jedoch in Lösung weitgehend hydrolytisch gespalten.
Das Verfahren gemäss der Erfindung zur Herstellung einer in der Medizin verwend baren farb- und geruchlosen, bitterschmecken- den, wässerigen Digitalislanata-Glykosidlö- sung ist dadurch gekennzeichnet, dass man Digitalislanata-Glykosid, ss-Pyridincarbon- säurediäthylamid und Wasser zusammen gibt.
Das für die Erzielung der Lösung zu ver wendende ss-Pyridincarbonsäurediäthylamid zeigt auch eine nützliche physiologische Wir kung.
Die erfindungsgemäss erhaltenen Lösungen können, wie Versuche ergaben, stark abge- kühlt und nachträglich verdünnt werden, ohne dass gelöste Substanz zur Ausscheidung kommt, und zwar auch bei hochprozentigem Zusatz an derer Stoffe, wie Traubenzucker, Kochsalz etc. <I>Beispiel:</I> Durch Hinzufügen von 25 eins einer 250%igen Lösung von ss-Pyridincarbonsäurediäthylamid in Wasser von Zimmertemperatur zu 0,025 g Digitalislanata-Glykosid(Lanadigin) wird eine klare, farblose, 0,1 0;
oige Lanadiginlösung er halten, die sich auch unter 0 0 abkühlen lässt, ohne zu erstarren oder Substanz auszuschei den. Nachträgliches Hinzufügen von Wasser zu obiger Lösung bewirkt ebenfalls keine Aus fällung. In reinem Wasser von Zimmertempe ratur löst sich Digitalislanata-Glykosid allein nur bis zirka 0,010o.
Process for the preparation of an aqueous digitalislanata glycoside solution. It was found that the water-soluble ß-pyridinecarboxylic acid diethylamide enables an aqueous digitalislanata glycoside solution to be produced from digitalislanata glycoside (lanadigin), in that the trivalent nitrogen in the pyridine nucleus of the P-pyridinecarboxylic acid diethylamide apparently has the tendency in the to pass over pentavalent nitrogen,
acts basic in this way and thus is able to add the acidic groups of the lanadigins per se. The resulting new body is water-soluble, but largely hydrolytically split in solution.
The method according to the invention for producing a colorless and odorless, bitter-tasting, aqueous digitalislanata glycoside solution which can be used in medicine is characterized in that digitalislanata glycoside, β-pyridinecarboxylic acid diethylamide and water are added together.
The s-pyridinecarboxylic acid diethylamide to be used to achieve the solution also shows a useful physiological effect.
The solutions obtained according to the invention can, as tests have shown, be strongly cooled and subsequently diluted without the dissolved substance being excreted, even with a high percentage of other substances such as dextrose, table salt etc. <I> Example: </ I> By adding 25% of a 250% solution of ß-pyridincarboxylic acid diethylamide in water at room temperature to 0.025 g of digitalislanata glycoside (lanadigin), a clear, colorless, 0.1%;
The above lanadigin solution is obtained, which can also be cooled below 0 0 without solidifying or excreting substance. Subsequent addition of water to the above solution also does not cause any precipitation. In pure water at room temperature, digitalislanata glycoside only dissolves to around 0.010o.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH189751T | 1935-07-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH189751A true CH189751A (en) | 1937-03-15 |
Family
ID=4436511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH189751D CH189751A (en) | 1935-07-11 | 1935-07-11 | Process for the preparation of an aqueous digitalislanata glycoside solution. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH189751A (en) |
-
1935
- 1935-07-11 CH CH189751D patent/CH189751A/en unknown
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