CH237575A - Process for the preparation of 2-amino-thiazole-5-sulfonanilide. - Google Patents
Process for the preparation of 2-amino-thiazole-5-sulfonanilide.Info
- Publication number
- CH237575A CH237575A CH237575DA CH237575A CH 237575 A CH237575 A CH 237575A CH 237575D A CH237575D A CH 237575DA CH 237575 A CH237575 A CH 237575A
- Authority
- CH
- Switzerland
- Prior art keywords
- thiazole
- amino
- sulfonanilide
- preparation
- compound
- Prior art date
Links
- -1 2-amino-thiazole-5-sulfonanilide Chemical compound 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 238000007127 saponification reaction Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 description 7
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 125000000565 sulfonamide group Chemical group 0.000 description 3
- 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
- XTHPWXDJESJLNJ-UHFFFAOYSA-N chlorosulfonic acid Substances OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 description 1
- RAIPHJJURHTUIC-UHFFFAOYSA-N 1,3-thiazol-2-amine Chemical compound NC1=NC=CS1 RAIPHJJURHTUIC-UHFFFAOYSA-N 0.000 description 1
- GOJUJUVQIVIZAV-UHFFFAOYSA-N 2-amino-4,6-dichloropyrimidine-5-carbaldehyde Chemical group NC1=NC(Cl)=C(C=O)C(Cl)=N1 GOJUJUVQIVIZAV-UHFFFAOYSA-N 0.000 description 1
- 208000035143 Bacterial infection Diseases 0.000 description 1
- ZNSMNVMLTJELDZ-UHFFFAOYSA-N Bis(2-chloroethyl)ether Chemical compound ClCCOCCCl ZNSMNVMLTJELDZ-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 208000022362 bacterial infectious disease Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000000973 chemotherapeutic effect Effects 0.000 description 1
- 239000012954 diazonium Substances 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-O diazynium Chemical compound [NH+]#N IJGRMHOSHXDMSA-UHFFFAOYSA-O 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000001044 red dye Substances 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
- 229940124530 sulfonamide Drugs 0.000 description 1
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
'erfahren zum Herstellen von 2-Amino-thiazol-5-sulfonanilid. Die bakteriziden Wirkungen von p-Amino- be#nzolsulfo#namd sind seit längerer Zeit bekannt, und es ist auch versucht worden, diese zur Bekämpfung bakterieller Infektio nen nutzbar zu machen.
Durch. Änderung en die ses Körper, durch Substitution, insbesondere in der Sulfonamidgruppe, sind Verbesserun gen hinsichtlich der Wirksamkeit und Ver träglichkeit erzielt worden, wobei sieh ins besondere gezeigt hat, dass die Einführung des Pyridin- bezw. des Thiazolringes (2-Sulf- auilylaminopyrid#in bezw. 2,Sulfanilylami.no- thiazol) günstig wirkt.
Es sin.dauch2-Amino- pyridin- bezw. -pyrimidin-5-sulfonamide <I>her-</I> gestellt worden, die ebenfalls bakterizide Eigenschaften zeigen. In all diesen Verbin dungen, liegt als Grundkörper ein Sechsring vor, in welchem sich die Amino- und die Sulfonamid & gruppe in Parastelluug befinden.
Nach dem vorliegenden Verfahren wird eine neue Verbindung hergestellt, .die als Grundko-rper nicht eiinen 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 @detr neue Stoff stark bak terizide Wirkungen auf;
ausserdem sind in ihm die für eine chemotherapeutische Ver- wendung erforderlichen Eigenschaften in günstiger Welse vereinigt. Die Verbindung zeichnet sich auch ,dü.rch besonders gute Re- soTpti.onsfähigkeit aus.
Erfindungsgemäss wird die neue Verbin dung, das 2-Amino-thiazol-5-sulfonanilid, hergestellt durch Umsetzung von aoetylier- tem 2-Amino,-thiazo#l-5-sul'fochlorid mit Ani lin und Abspalten der Aoetylgruppe durch Verseifen aus dem so erhaltenen Produkt.
Dass 2-Amine-thiazol-5-sulfonanilid hat den Schmelzpunkt 153 und ist wenig löslich in Wasser und Alkohol, scli-werl'öslich in Äther und Aceton. Das 2-Amino-thiazol kann nach Trau marm ("Annalen der Chemie", Band 249, Seite 36) aus Dichloräthyläther und Thio- harnstoff hergestellt werden.
Es kann in Form seiner Acetylverbindung durch vorsich- tige Behandlung mit Chlorsulfonsäure zum Sulfochlorid umgesetzt werden, das als Aus gangsmaterial des vorliegenden Verfahrens dient.
Beispiel: 1 g 2-Acetyl-amina-thiazol-5-sulfochlorid und 1 g Anilin werden. in 5 cm' Aceton zu- sammengebraeht. Nach Verdunsten des Ace tons wird der Rückstand mit \Nasser aus gezogen und das rohe 2-Acetyl-amino-thiazol- 5=sulfonanilid aus 95 % igem All@ohol mit Tier kohle gereinigt.
Durch zweistündiges Erhitzen mit ver dünnter Salzsäure auf dem Wasserbad wird dieAcetylgruppe unterBildung von2-Amino- thiazol-5=sulfonanilid abgespalten. Die dann erhaltene Verbindung bildet farblose Nadeln, die bei 153" schmelzen. Die Verbindung lässt sich diazotieren. Die Diazoniumlösung kup pelt mit Phenol oder fl-Naphthol in alkali schem 3ledium unter Bildung von. roten Farb stoffen.
Die erfindungsgemäss hergestellte Verbin dung soll als Heilmittel verwendet werden.
'Experienced in preparing 2-amino-thiazole-5-sulfonanilide. The bactericidal effects of p-amino be # nzolsulfo # namd have been known for a long time, and attempts have also been made to make them useful for combating bacterial infections.
By. Changes in 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-sulfanilylaminopyride # in or 2, sulfanilylamino-thiazole) has a favorable effect.
There sin.dauch2-amino pyridine or. -pyrimidine-5-sulfonamides <I> manufactured </I>, which also show bactericidal properties. In all these compounds there is a six-membered ring in which the amino and sulfonamide groups are in parastelluug.
According to the present process, a new compound is produced, which does not contain a six-membered ring but a five-membered ring, namely the thiazole ring, as its basic body. the amino and sulfonamide groups face each other in the 2-, 5-position.
Despite the known compounds that differ from the ones mentioned above, the structure has @detr new substance strongly bactericidal effects;
moreover, the properties necessary for a chemotherapeutic application are combined in a favorable way. The connection is also distinguished by its particularly good resoTi.ons ability.
According to the invention, the new compound, the 2-amino-thiazole-5-sulfonanilide, prepared by reacting aoetylated tem 2-amino, thiazo # l-5-sul'fochlorid with ani lin and splitting off the aoetyl group by saponification from the product thus obtained.
The 2-amine-thiazole-5-sulfonanilide has a melting point of 153 and is sparingly soluble in water and alcohol, but also soluble in ether and acetone. The 2-amino-thiazole can be prepared from dichloroethyl ether and thiourea according to Trau marm ("Annalen der Chemie", Volume 249, page 36).
In the form of its acetyl compound, careful treatment with chlorosulfonic acid can convert it to sulfochloride, which is used as the starting material for the present process.
Example: 1 g of 2-acetyl-amina-thiazole-5-sulfochloride and 1 g of aniline are used. brewed in 5 cm 'acetone. After evaporation of the Ace tons, the residue is drawn off with \ Nasser and the crude 2-acetylamino-thiazole-5 = sulfonanilide from 95% all @ alcohol is purified 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-amino-thiazole-5 = sulfonanilide. The compound then obtained forms colorless needles which melt at 153 ". The compound can be diazotized. The diazonium solution couples with phenol or fl-naphthol in alkali metal to form 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 |
|---|---|---|---|
| DE237575X | 1941-04-09 | ||
| CH231794T | 1942-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH237575A true CH237575A (en) | 1945-04-30 |
Family
ID=25727635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH237575D CH237575A (en) | 1941-04-09 | 1942-03-27 | Process for the preparation of 2-amino-thiazole-5-sulfonanilide. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH237575A (en) |
-
1942
- 1942-03-27 CH CH237575D patent/CH237575A/en unknown
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