DE731912C - Process for the production of pellets of sulfanilamide - Google Patents
Process for the production of pellets of sulfanilamideInfo
- Publication number
- DE731912C DE731912C DER105724D DER0105724D DE731912C DE 731912 C DE731912 C DE 731912C DE R105724 D DER105724 D DE R105724D DE R0105724 D DER0105724 D DE R0105724D DE 731912 C DE731912 C DE 731912C
- Authority
- DE
- Germany
- Prior art keywords
- sulfanilamide
- pellets
- production
- dissolved
- added
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C311/00—Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
- C07C311/30—Sulfonamides, the carbon skeleton of the acid part being further substituted by singly-bound nitrogen atoms, not being part of nitro or nitroso groups
- C07C311/37—Sulfonamides, the carbon skeleton of the acid part being further substituted by singly-bound nitrogen atoms, not being part of nitro or nitroso groups having the sulfur atom of at least one of the sulfonamide groups bound to a carbon atom of a six-membered aromatic ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
Description
Verfahren zur Herstellung von Abkömmlingen des Sulfanilamids Verbindungen, welche sich vom Sulfanilamid durch Substituierung der Sulfonamid-,gruppe durch einen Pyridinkern bzw. substitulerten Pyridinkern ableiten, zeichnen sich durch bakterientötende Eigenschaften im -Oruanismus aus.Process for the preparation of derivatives of the sulfanilamide compounds, which differs from the sulfanilamide by substituting the sulfonamide group with a Derive pyridine nucleus or substituted pyridine nucleus, are characterized by bactericidal Properties in -Oruanism.
ZD Die schwere Löslichkeit dieser Körper beeinflußt jedoch ungünstig ihre Resoirption im Organismus, wodurch einie ungleichmäßige Wirkung vetruTsacht werden kann.ZD The poor solubility of these bodies, however, has an unfavorable effect their resoirption in the organism, which causes a non-uniform effect can be.
Außerdem trägt die- freie Aminogruippe am Benzolk-em dex Toxicität solcher Verbindurigen bei. So wurden z. B. nach innerer Einnahnie von Sü.Ifandyl-a-pyridyl,anüd oft bis bei 4o v. H. der Fälle -unangenehme Nebenerschein-ungen (Nausea, Erbrechen, Magenbeschwerden, Benommenheit) beobachtet. Dieser Um-stand kann oft die Therapie mit Körpern dieser Gruppe nicht nurerschweren, soindern auch unmöglich machen. Wird die freie Amino- pe durch einen Säurerest substi-J.rup tuiert, z. B. acetyliert, so verschwindet der therapeutische Effekt nahezu vollständig.In addition, the free amino group on the Benzolk-em dex is toxic such liaison. So were z. B. after inner Einnahnie of Sü.Ifandyl-a-pyridyl, anüd often up to 4o BC H. of the cases - unpleasant side effects (nausea, vomiting, Stomach discomfort, drowsiness). This circumstance can often be the therapy with bodies of this group not only make them heavier, but also make it impossible to reduce them. Will the free amino pe is substituted by an acid residue, e.g. B. acetylated, so the therapeutic effect disappears almost completely.
Es wurde nun gefunden -, daß im Falle, wenn die Substituierung mit der Bernsteinsättre vorgenommen wird, die bakteriziden Eigenschaften in vollem Ausmaße erhalten bleiben-, bei gleichzeitiger bedeutender Herabsetzung deT Texicität. Der saure Charakter der neuen Verbindungen befähigt sie zuir Bildung leicht löslicher, neutraler Salze. Bei ausgezeichneter Resorption und Verträglichkeit dieser Körper besteht auch die Möglichkeit b#equenier parenteraler Verabreichung.It has now been found - that in the case when the substitution with the amber saturation is made, the bactericidal properties to the fullest remain - with a simultaneous significant reduction in the texicity. Of the the acidic character of the new compounds enables them to form neutral salts. With excellent absorption and tolerance, this body there is also the possibility of equal parenteral administration.
Erfindungsgemäß gelangt man zu den hie-r angeführten Körpern, wenn man nachan sich bekannten Methoden entweder in der p-ständigen Aminogruppe unstibstituierte Sulfanilamidopyridine mittels Bernsteinsäureanhydrid oder -halGgenid oder aber das Siiccinoylsulfanilsäurechlorid duirch Umsetzen mit Aminapyridinen in p-Succinoylamii-iobenzolsulf-onamidopyridine überführt. Die entstandenen Produkte sind im Wasser schwer löslich ', reagieren als Säuren und bilden leicht lösliche Salze mit anorganischen und arganischen Basen. Beispiel i 25 g. 4-Aminobei-izolsulfenyl-a-pyridylamid werden in 16o cm0, Aceton aufgelöst und 11,5.- Bernsteinsäureanhydrid zugesetzt. Es wird i Stunde unter Rückfluß gekocht, hier-I auf mit Wasser verdünnt und dasausgefallene Produkt abgesauggt. Nach dem Umkristallisieren aus verdünntem Alkohol bildet das 4-Succinoyla"minobe,nzols#ulfonyl-a-pyridylamid farblose Kristalle, welche bei igi' unter schwacher Kohlensäureentwicklung schmelzen. Das INTatriumsalz ist leicht löslich in Wasser. Bleispiel 2 io a'-Aminopyridyl-(,t-sulfamilamid, dar-C aus Acetylsulfanilchlorid und a,a'-Diaminopyridin mit nachfolgender Desacletylierung, Schmelzpunkt igg', werden in 28ocrn'- Acetan heiß gelöst und sodann 4,2,-Bernsteinsäureanhydrid in 2ocm3 Aceton gelöst zugesetzt. Es wird 3 Stunden im Wasserbad gekocht. Beim ErlmIten fällt feines Pul-t, ver aus. Urn,kristallisiert aus Soo"oi,-"eni Alkoh#ol, schmilzt es unter Kohlensäureeritwicklung bei 176".According to the invention, the bodies listed here are obtained if, by methods known per se, either sulfanilamidopyridines which are not substituted in the p-amino group are converted by means of succinic anhydride or halide, or the siccinoylsulfanilic acid chloride is converted into p-succinoylsulfanilic acid chloride by reaction with aminapyridines into p-succinoylamino-sulfidines. The resulting products are sparingly soluble in water , react as acids and form easily soluble salts with inorganic and argan bases. Example i 25 g. 4-Aminobei-izolsulfenyl-a-pyridylamide are dissolved in 16o cm0 acetone and 11.5 succinic anhydride is added. It is refluxed for 1 hour, here-I diluted with water and the precipitated product is filtered off with suction. After recrystallization from dilute alcohol, the 4-succinoyla "minobe, nzenesulfonyl-a-pyridylamide forms colorless crystals, which melt at igi 'with weak evolution of carbonic acid. The sodium salt is easily soluble in water. Lead example 2 io a'-aminopyridyl- ( , t-sulfamilamid, represents-C from Acetylsulfanilchlorid and a, a'-diaminopyridine with subsequent Desacletylierung, mp igg ', are dissolved hot in 28ocrn'- acetan, and then 4.2 succinic anhydride added dissolved in 2ocm3 acetone. It is 3 cooked for hours in the water when ErlmIten fine powder-falling t, ver from Urn, crystallized from Soo "oi, -".. eni alcoh # ol, it melts under Kohlensäureeritwicklung at 176 ".
Beispiel 3 5og a-Arninupyridin werden in 6ocrn-3 gelöst und 1159 feuchtes 6o%i,-es SuccinoylsLilfanüsäurechlorid eingetragen. Es wird 2 Stundengekocht, bis eine fast vollkommene Lösung eintritt. -Mit 5o cms --o (),/o iger Natron - lauge wird alles in Lösung gebracht und mit Tierkohle filtriert. Nun wird mit 50 cm" konzentrierter Salzsäure versetzt. Nach einiger Zeit erfolgt die Kristallisation. Das aus Alkohol umkristallisierte Produkt schmilzt bei igi'. EXAMPLE 3 5og α-aminupyridine are dissolved in 6ocrn-3 and 1159 moist 6o% 1 -es succinoylsilfanoic acid chloride are added. It is boiled for 2 hours until an almost perfect solution occurs. -With 5o cms --o () / o sulfuric soda - alkali everything is dissolved and filtered with charcoal. 50 cm "of concentrated hydrochloric acid is then added. After a while, crystallization takes place. The product recrystallized from alcohol melts at igi '.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER105724D DE731912C (en) | 1939-07-26 | 1939-07-26 | Process for the production of pellets of sulfanilamide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER105724D DE731912C (en) | 1939-07-26 | 1939-07-26 | Process for the production of pellets of sulfanilamide |
Publications (1)
Publication Number | Publication Date |
---|---|
DE731912C true DE731912C (en) | 1943-02-17 |
Family
ID=7421226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DER105724D Expired DE731912C (en) | 1939-07-26 | 1939-07-26 | Process for the production of pellets of sulfanilamide |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE731912C (en) |
-
1939
- 1939-07-26 DE DER105724D patent/DE731912C/en not_active Expired
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