CH230439A - Procedure for the representation of Adermin. - Google Patents
Procedure for the representation of Adermin.Info
- Publication number
- CH230439A CH230439A CH230439DA CH230439A CH 230439 A CH230439 A CH 230439A CH 230439D A CH230439D A CH 230439DA CH 230439 A CH230439 A CH 230439A
- Authority
- CH
- Switzerland
- Prior art keywords
- procedure
- adermin
- representation
- carbalkoxyamino
- phenoxymethyl
- Prior art date
Links
Landscapes
- Pyridine Compounds (AREA)
Description
Verfahren zur Darstellung von Aderurin. Nach dem Hauptpatent wird Vitamin B6 (Aderurin) dadurch gewonnen, dass man 2 Methyl-3-carbalkoxyamino-4-phenoxymethyl- 5-oxymethylpyridin zunächst mit Bromwas serstoff behandelt, das entstandene bromhal tige Zwischenprodukt mit Wasser kocht und anschliessend mit salpetriger Säure oder sol chen Stoffen, welche geeignet sind, salpetrige Säure zu entwickeln, bei erhöhter Tempera tur umsetzt.
Es wurde nun gefunden, dass man Ader min aus der gleichen Ausgangsverbindung auch in glatter Reaktion erhalten kann, wenn man das 2-l@Tethyl-3-carbalkoxyamino-4-phen- oxymethyl-5-oxymethy lpyridin mit @hlor- wasserstoffsäure behandelt und das entstan dene chlorhaltige Zwischenprodukt diazotiert und verkocht. Insbesondere hat es sich als zweckmässig erwiesen, die Diazotierung mit Silbernitrit vorzunehmen.
Das Aderurin soll als Arzneimittel ver wendet werden.
<I>Beispiel:</I> 2-Methyl-3-carbalkoxyamino - 4 - phenoxy- methyl-5-oxymethylpyridin wird im Verhält- nis von 72 : 1000 Teilen mit 2,5 % iger, wäs seriger Chlorwasserstoffsäure versetzt und im Druckgefäss während mehreren Stunden bei 180 gehalten. Das Umsetzungsgemisch ist bräunlich gefärbt und kann mit Tierkohle entfärbt werden. Mann gibt 36 Teile Silber nitrit zu und erwärmt das Gemisch unter Rühren auf etwa 80 . Das gebildete Silber chlorid wird abfiltriert; aus dem Filtrat scheidet sich beim Einengen das Aderurin kristallin ab.
Procedure for visualizing vein urine. According to the main patent, vitamin B6 (Aderurin) is obtained by first treating 2-methyl-3-carbalkoxyamino-4-phenoxymethyl-5-oxymethylpyridine with hydrogen bromide, boiling the resulting bromine-containing intermediate product with water and then boiling it with nitrous acid or such Substances that are capable of developing nitrous acid are converted at elevated temperatures.
It has now been found that Ader min can also be obtained from the same starting compound in a smooth reaction if the 2-l @ methyl-3-carbalkoxyamino-4-phenoxymethyl-5-oxymethyl pyridine is treated with @ hydrochloric acid and the resulting chlorine-containing intermediate is diazotized and boiled off. In particular, it has proven expedient to carry out the diazotization with silver nitrite.
The urine should be used as a medicine.
<I> Example: </I> 2-methyl-3-carbalkoxyamino-4-phenoxymethyl-5-oxymethylpyridine is mixed with 2.5% aqueous hydrochloric acid in a ratio of 72: 1000 parts and placed in a pressure vessel held at 180 for several hours. The reaction mixture is brown in color and can be decolorized with animal charcoal. 36 parts of silver nitrite are added and the mixture is heated to about 80 while stirring. The silver chloride formed is filtered off; The urine separates from the filtrate in crystalline form on concentration.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH224069T | 1941-03-07 | ||
CH230439T | 1942-02-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH230439A true CH230439A (en) | 1943-12-31 |
Family
ID=25726767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH230439D CH230439A (en) | 1941-03-07 | 1942-02-20 | Procedure for the representation of Adermin. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH230439A (en) |
-
1942
- 1942-02-20 CH CH230439D patent/CH230439A/en unknown
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