CH237573A - Process for the preparation of 2-amino-thiazole-5-sulfonamide. - Google Patents
Process for the preparation of 2-amino-thiazole-5-sulfonamide.Info
- Publication number
- CH237573A CH237573A CH237573DA CH237573A CH 237573 A CH237573 A CH 237573A CH 237573D A CH237573D A CH 237573DA CH 237573 A CH237573 A CH 237573A
- Authority
- CH
- Switzerland
- Prior art keywords
- amino
- thiazole
- sulfonamide
- preparation
- product
- Prior art date
Links
- VGYHEIFRKKUZTD-UHFFFAOYSA-N 2-amino-1,3-thiazole-5-sulfonamide Chemical compound NC1=NC=C(S(N)(=O)=O)S1 VGYHEIFRKKUZTD-UHFFFAOYSA-N 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 5
- 238000002360 preparation method Methods 0.000 title description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 125000003277 amino group Chemical group 0.000 claims description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- 150000003868 ammonium compounds Chemical class 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 238000000354 decomposition reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 description 6
- 230000000844 anti-bacterial Effects 0.000 description 3
- 125000000565 sulfonamide group Chemical group 0.000 description 3
- XTHPWXDJESJLNJ-UHFFFAOYSA-N sulfurochloridic acid Chemical compound OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000001099 ammonium carbonate Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- FZWLAAWBMGSTSO-UHFFFAOYSA-N thiazole Chemical group C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 2
- ICSNLGPSRYBMBD-UHFFFAOYSA-N 2-Aminopyridine Chemical compound NC1=CC=CC=N1 ICSNLGPSRYBMBD-UHFFFAOYSA-N 0.000 description 1
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-Naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 description 1
- MJGGWXSWTHWCFW-UHFFFAOYSA-N 2-amino-N-(1,3-thiazol-2-yl)benzenesulfonamide Chemical compound NC1=CC=CC=C1S(=O)(=O)NC1=NC=CS1 MJGGWXSWTHWCFW-UHFFFAOYSA-N 0.000 description 1
- RAIPHJJURHTUIC-UHFFFAOYSA-N Aminothiazole Chemical compound NC1=NC=CS1 RAIPHJJURHTUIC-UHFFFAOYSA-N 0.000 description 1
- PRKQVKDSMLBJBJ-UHFFFAOYSA-N Ammonium carbonate Chemical compound N.N.OC(O)=O PRKQVKDSMLBJBJ-UHFFFAOYSA-N 0.000 description 1
- 206010060945 Bacterial infection Diseases 0.000 description 1
- ZNSMNVMLTJELDZ-UHFFFAOYSA-N Bis(chloroethyl) ether Chemical compound ClCCOCCCl ZNSMNVMLTJELDZ-UHFFFAOYSA-N 0.000 description 1
- VDACKAUCWTUTDA-UHFFFAOYSA-N N-(5-sulfamoyl-1,3-thiazol-2-yl)acetamide Chemical compound CC(=O)NC1=NC=C(S(N)(=O)=O)S1 VDACKAUCWTUTDA-UHFFFAOYSA-N 0.000 description 1
- FDDDEECHVMSUSB-UHFFFAOYSA-N Sulfanilamide Chemical compound NC1=CC=C(S(N)(=O)=O)C=C1 FDDDEECHVMSUSB-UHFFFAOYSA-N 0.000 description 1
- GECHUMIMRBOMGK-UHFFFAOYSA-N Sulfapyridine Chemical compound C1=CC(N)=CC=C1S(=O)(=O)NC1=CC=CC=N1 GECHUMIMRBOMGK-UHFFFAOYSA-N 0.000 description 1
- UMGDCJDMYOKAJW-UHFFFAOYSA-N Thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- -1 acetyl compound Chemical class 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N azanium;hydron;carbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000000973 chemotherapeutic Effects 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000001044 red dye Substances 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000730 tolerability Toxicity 0.000 description 1
Description
Verfahren zum Herstellen von 2-Amino-thiazol-5-sulfonamid. Die bakteriziden Wirkungen von p-Amino- benzolsulfonamid sind seit längerer Zeit be kannt, und es ist auch versucht worden, diese zur Bekämpfung bakterieller Infektionen nutzbar zu machen.
Durch Änderungen die ses Körpers durch Substitution, insbesondere in der Sulfonamidgruppe, sind Verbesserun gen hinsichtlich der Wirksamkeit und Ver träglichkeit erzielt worden, wobei sich ins besondere gezeigt hat, dass die Einführung des Pyridin- bezw. des Thiazolringes (2-Sulf- anilylaminopyridin bezw. 2-Sulfanilylamino- thiazol)
günstig wirkt. Es sind auch 2-Amino- pyridin- bezw. -pyrimidin-5-sulfonamide her gestellt worden, die ebenfalls bakterizide Ei genschaften zeigen. In all diesen Verbindun gen liegt als Grundkörper ein Sechsring vor, in welchem sich die Amino- und die Sulfon- amidgruppe in Parastellung befinden.
Nach dem vorliegenden Verfahren wird eine neue Verbindung hergestellt, die als Grundkörper nicht einen Sechs-, sondern einen Fünfring, nämlich den Thiazolring, enthält, in welchem sich die Amino- und die Sulfonamidgruppe in 2-, 5-Stellung gegen überstehen. Trotz der von den vorstehend er wähnten bekannten Verbindungen abweichen den Struktur weist der neue Stoff stark bak terizide -\Virkungen auf; ausserdem sind in ihm die für eine chemotherapeutische Ver wendung erforderlichen Eigenschaften in günstiger Weise vereinigt. Die Verbindung zeichnet sich auch durch besonders gute Re sorptionsfähigkeit aus.
Erfindungsgemäss wird die neue Verbin- dung, das 2-Amino-thiazol-5-sulfonamid, her gestellt durch Umsetzen von acetyliertem 2- Aminothiazol-5-sulfochlorid mit Ammonium verbindungen, wie Ammoniumhydrogyd und Ammoncarbonat, aus denen die Amino- gruppe in das Endprodukt übergeht, und Abspalten der Acetylgruppe durch Verseifen im so erhaltenen Produkt.
Das 2-Amino- thiazol-5-sulfonamid hat den Zersetzungs- punkt 262 . Es ist schwer löslich in Wasser und Alkohol, leicht löslich in Aceton, unlös lich in Benzol und Äther.
Das 2-Aminothiazol kann nach Traumann ("Annalen der Chemie", Band 249, Seite 36) aus Dichloräthyläther und Thioharnstoff hergestellt werden. Es kann in Form seiner Acetylverbindung durch vorsichtige Behand lung mit Chlorsulfonsäure zum Sulfochlorid umgesetzt werden, das als Ausgangsmaterial des vorliegenden Verfahrens dient.
<I>Beispiel:</I> I g 2-Acetylamino-thiazol-5-sulfochlorid wird in wenig Aceton gelöst und mit einem kleinen Überschuss an '25%igem Ammoniak versetzt. Aceton und Wasser werden ver dampft und das aus dem Rückstand mit Al kohol extrahierte 2 - Acetylamino - thiazol - 5- sulfonamid aus Wasser mit Tierkohle um kristallisiert.
Durch zweistündiges Erhitzen mit ver dünnter Salzsäure auf dem Wasserbad wird die Acetylgruppe unter Bildung von 2-Amino- thiazol-5-sulfonamid abgespalten. Die dann erhaltene Verbindung bildet farblose gri- stalle, die sich diazotieren lassen. Die Dia.zo- niumlösungkuppelt mit Phenol oder ss-Naph- thol in alkalischem Medium unter Bildung von roten Farbstoffen.
Die erfindungsgemäss hergestellte Verbin dung soll als Heilmittel verwendet werden.
Process for the preparation of 2-amino-thiazole-5-sulfonamide. The bactericidal effects of p-aminobenzenesulfonamide have been known for a long time, and attempts have also been made to make them useful for combating bacterial infections.
By changes this body through substitution, especially in the sulfonamide group, improvements have been made in terms of effectiveness and tolerability, and it has been shown in particular that the introduction of the pyridine or. of the thiazole ring (2-sulfanilylaminopyridine or 2-sulfanilylaminothiazole)
works favorably. There are also 2-aminopyridine respectively. -pyrimidine-5-sulfonamides have been made, which also show bactericidal properties. In all of these compounds there is a six-membered ring in which the amino and sulfonamide groups are in the para position.
According to the present process, a new compound is produced which contains not a six-membered but a five-membered ring, namely the thiazole ring, in which the amino and sulphonamide groups are in the 2-, 5-position opposite. In spite of the structure that differs from the known compounds mentioned above, the new substance has strong bactericidal effects; In addition, the properties required for chemotherapeutic use are advantageously combined in it. The connection is also characterized by particularly good absorption capacity.
According to the invention, the new compound, the 2-amino-thiazole-5-sulfonamide, is made by reacting acetylated 2-aminothiazole-5-sulfochloride with ammonium compounds, such as ammonium hydrogen and ammonium carbonate, from which the amino group is converted into the end product passes, and cleavage of the acetyl group by saponification in the product thus obtained.
The 2-aminothiazole-5-sulfonamide has a decomposition point of 262. It is sparingly soluble in water and alcohol, slightly soluble in acetone, insoluble in benzene and ether.
The 2-aminothiazole can be prepared from dichloroethyl ether and thiourea according to Traumann ("Annalen der Chemie", Volume 249, page 36). In the form of its acetyl compound, it can be reacted carefully with chlorosulfonic acid to form the sulfochloride, which is used as the starting material for the present process.
<I> Example: </I> I g of 2-acetylamino-thiazole-5-sulfochloride is dissolved in a little acetone and mixed with a small excess of 25% ammonia. Acetone and water are evaporated and the 2 - acetylamino - thiazole - 5 - sulfonamide extracted from the residue with alcohol is recrystallized from water with animal charcoal.
By heating with dilute hydrochloric acid for two hours on a water bath, the acetyl group is split off with formation of 2-aminothiazole-5-sulfonamide. The compound then obtained forms colorless granules which can be diazotized. The dia.zonium solution couples with phenol or ss-naphthol in an alkaline medium with the formation of red dyes.
The compound produced according to the invention is intended to be used as a remedy.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE237573X | 1941-04-09 | ||
CH231794T | 1942-03-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH237573A true CH237573A (en) | 1945-04-30 |
Family
ID=25727633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH237573D CH237573A (en) | 1941-04-09 | 1942-03-27 | Process for the preparation of 2-amino-thiazole-5-sulfonamide. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH237573A (en) |
-
1942
- 1942-03-27 CH CH237573D patent/CH237573A/en unknown
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