CH490391A - Process for the production of new antidiabetic sulfonamides - Google Patents

Process for the production of new antidiabetic sulfonamides

Info

Publication number
CH490391A
CH490391A CH444770A CH444770A CH490391A CH 490391 A CH490391 A CH 490391A CH 444770 A CH444770 A CH 444770A CH 444770 A CH444770 A CH 444770A CH 490391 A CH490391 A CH 490391A
Authority
CH
Switzerland
Prior art keywords
sep
sulfonamides
isobutyl
pyrimidine
formula
Prior art date
Application number
CH444770A
Other languages
German (de)
Inventor
Nat Heerdt Ruth Dr Rer
Nat Schmidt Felix Helmut D Rer
Stach Kurt Ing Dr
Rudi Dr Weyer
Original Assignee
Boehringer Mannheim Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DEB84050A external-priority patent/DE1254153B/en
Application filed by Boehringer Mannheim Gmbh filed Critical Boehringer Mannheim Gmbh
Publication of CH490391A publication Critical patent/CH490391A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D239/00Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/69Benzenesulfonamido-pyrimidines

Description

  

  Verfahren zur Herstellung von neuen antidiabetisch wirksamen Sulfonamiden    Gegenstand des Hauptpatentes Nr. 473<B>812</B> ist ein  Verfahren zur Herstellung von neuen antidiabetisch  wirksamen Sulfonamiden der     Formel     
EMI0001.0001     
    in welcher X einen geraden oder     verzweigten    Kohlen  wasserstoffrest von 1 bis 4 C-Atomen, A einen gegebe  nenfalls substituierten Alkyl-, Cycloalkyl-, Aryl-,     Aral-          kyl-    oder Aryloxyalkyl-Rest und R1 einen gegebenen  falls substituierten Alkyl-, Cycloalkyl-, Aryl-, Aralkyl-,  Alkoxy-, Alkoxyalkyl- oder Alkoxyalkoxy-Rest bedeu  ten, dadurch gekennzeichnet, dass man Substanzen der  Formel  
EMI0001.0005     
    mit dem reaktiven Derivat einer Säure der Formel  A-CO-OH acyliert.  



  Es wurde nun gefunden, dass auch Sulfonamide der  Formel I  
EMI0001.0006     
    in der R= eine niedere Alkyl- oder gegebenenfalls sub  stituierte Aralkylgruppe bedeutet, eine ausgezeichnete  blutzuckersenkende Wirkung besitzen.  



  Gegenstand der vorliegenden Erfindung ist demnach  ein     Verfahren    zur Herstellung dieser neuen Sulfonamide    der Formel I, das dadurch     gekennzeichnet    ist, dass man  Substanzen der Formel II  
EMI0001.0009     
    mit dem reaktiven Derivat einer Säure der Formel  A-CO-OH, umsetzt.  



  <I>Beispiel 1</I>  2-[4-(b-2'-Methoxy-5'-chlorbenzoyl-N-methyl       amino-äthyl)-benzolsulfonamido]-5-isobutyl-          pyrimidin     Zu 3 g     2-[4-(b-N-Methylamino-äthyl)-benzolsulfon-          amido]-5-isobutyl-pyrimidin    in 13 ml abs. Pyridin wer  den unter Rühren 1,8 g     5-Chlor-2-methoxy-benzoyl-          chlorid    gegeben und über Nacht stehen gelassen. Dann  erhitzt man 1 Stunde auf 100  C, lässt abkühlen und  giesst auf Eis. Die ausgefallene     Substanz    wird abge  saugt und aus Soda/Salzsäure umgefällt. Schliesslich  wird aus Methanol umkristallisiert; Fp. 186  C.  



  Zur Herstellung des Ausgangsproduktes geht man  wie     folgt    vor:  15 g     4-(ss-Acetyl-N-methylamino-äthyl)-benzolsul-          fonamid    (erhalten durch Umsetzung von     4-(ss-Acetyl-N-          methylaminoäthyl)-benzol    mit Chlorsulfonsäure und  Amidierung des Sulfochlorids; Fp. 149-150  C) wer    den mit 10 g 2-Chlor-5-isobutyl-pyrimidin und 8,1 g  Kaliumcarbonat vermischt und langsam auf 190-200   C erhitzt.

   Nach 2-stündigem Erhitzen lässt man ab  kühlen und nimmt die     Schmelze    in Wasser auf.     Es    wird  mit Tierkohle behandelt, filtriert und mit Salzsäure das       2-[4-(3-Acetyl-N-methylamino-äthylbenzolsulfonamido]-          5-isobutyl-pyrimidin    ausgefällt;     Fp.    193-194  C. 1S,9      g dieser Acetyl-Verbindung werden in 60 ml 2n Na  tronlauge gelöst und 7 Stunden unter     Rückfluss    gekocht;  dann wird abgekühlt und mit 2n Salzsäure auf pH 7  gestellt. Das auf diese Weise erhaltene 2-[4-(ss-N-Me       thylaminoäthyl-benzolsulfonamido]-5-isobutyl-pyrimi-          din    schmilzt bei 213-215  C.  



  In analoger Weise wurden hergestellt:       2-[4-(ss-T'-Methyl-2'-methoxybenzoyl-N-methyl-amino-          äthyl)-benzolsulfonamido]-5-isobutyl-pyrimidin    vom  Fp. 147-149  C,       2-[4-(ss-o-Methoxybenzoyl-N-methyl-aminoäthyl)-          benzolsulfonamido]-5-isobutyl-pyrimidin    vom Fp.  169-170  C,       2-[4-(ss-m-Chlorbenzoyl-N-methyl-aminoäthyl)-          benzolsulfonamido]-5-isobutyl-pyrimidin    vom Fp.  174-176  C,       2-[4-(ss-Benzoyl-N-methylamino-äthyl)-benzol-          sulfonamido]-5-isobutyl-pyrimidin    vom Fp. 170 bis  172  C.  



  <I>Beispiel 2</I>       2-[4-(d-2'-Methoxy-5'-chlor-benzoyl-N-äthyl-          aminoäthyl)-benzolsul        fonamido]-5-isobutyl-          pyrimidin     Zu 3 g     2-[4-(ss-N-Äthylamino-äthyl-benzolsulfonami-          do]-5-isobutyl-pyrimidin    in 30 ml abs. Pyridin werden  unter Rühren 1,7 g 5-Chlor-2-methoxy-benzoylchlorid  gegeben und über Nacht stehen gelassen. Dann erhitzt  man 1 Stunde auf 100  C, lässt abkühlen und giesst auf  Eis. Die ausgefallene Substanz wird abgesaugt und aus  Soda-Salzsäure umgefällt. Schliesslich wird zweimal aus  Isopropanol umkristallisiert; Fp. 148-150  C.  



  Zur Herstellung des Ausgangsproduktes geht man  wie folgt vor:  10,4 g     4-(ss-Acetyl-N-äthylamino-äthyl)-benzolsul-          fonamid    (erhalten durch Umsetzung von     4-(ss-Acetyl-N-          äthylaminoäthyl)-benzol    mit Chlorsulfonsäure und     Ami-          dierung    des Sulfochlorids; Fp. 180-1810 C) werden  mit 6,6 g 2-Chlor-5-isobutyl-pyrimidin und 5,3g Ka-    liumcarbonat vermischt und langsam auf 200  C erhitzt.  Nach 2-stündigem Erhitzen lässt man abkühlen und  nimmt die     Schmelze    in Wasser auf.

   Es wird mit Tier  kohle behandelt, filtriert und mit Salzsäure das 2-[4-ss       Acetyl-N-äthylamino-äthylbenzol-sulfonamido]-5-isobu-          tyl-pyrimidin    ausgefällt; Fp. 165-168  C.     Anschlies-          send    wird die Acetylverbindung mit 3 Mol 2n Natron  lauge 8 Stunden zum     2-[4-(ss-N-Äthyl-amino-äthyl-          benzolsulfonamido]-5-isobutyl-pyrimidin    verseift; Fp.  238-240  C.



  Process for the production of new anti-diabetic sulfonamides The subject of the main patent no. 473 <B> 812 </B> is a process for the production of new anti-diabetic sulfonamides of the formula
EMI0001.0001
    in which X is a straight or branched hydrocarbon radical of 1 to 4 carbon atoms, A is an optionally substituted alkyl, cycloalkyl, aryl, aralkyl or aryloxyalkyl radical and R1 is an optionally substituted alkyl, cycloalkyl , Aryl, aralkyl, alkoxy, alkoxyalkyl or alkoxyalkoxy radical mean, characterized in that substances of the formula
EMI0001.0005
    acylated with the reactive derivative of an acid of the formula A-CO-OH.



  It has now been found that sulfonamides of the formula I
EMI0001.0006
    in which R = a lower alkyl or optionally substituted aralkyl group, have an excellent blood sugar-lowering effect.



  The present invention accordingly provides a process for the preparation of these new sulfonamides of the formula I, which is characterized in that substances of the formula II
EMI0001.0009
    with the reactive derivative of an acid of the formula A-CO-OH.



  <I> Example 1 </I> 2- [4- (b-2'-methoxy-5'-chlorobenzoyl-N-methylamino-ethyl) -benzenesulfonamido] -5-isobutyl-pyrimidine To 3 g of 2- [4 - (bN-methylamino-ethyl) -benzenesulfonamido] -5-isobutyl-pyrimidine in 13 ml of abs. Pyridine who added 1.8 g of 5-chloro-2-methoxy-benzoyl chloride with stirring and left to stand overnight. The mixture is then heated to 100 ° C. for 1 hour, allowed to cool and poured onto ice. The precipitated substance is filtered off and reprecipitated from soda / hydrochloric acid. Finally, it is recrystallized from methanol; Mp. 186 C.



  To prepare the starting product, proceed as follows: 15 g of 4- (ß-acetyl-N-methylamino-ethyl) -benzenesulfonamide (obtained by reacting 4- (ß-acetyl-N-methylaminoethyl) -benzene with chlorosulfonic acid and Amidation of the sulfochloride; mp. 149-150 C) who mixed the 10 g of 2-chloro-5-isobutyl-pyrimidine and 8.1 g of potassium carbonate and slowly heated to 190-200 C.

   After heating for 2 hours, it is allowed to cool and the melt is taken up in water. It is treated with animal charcoal, filtered and the 2- [4- (3-acetyl-N-methylamino-ethylbenzenesulfonamido] -5-isobutyl-pyrimidine precipitated with hydrochloric acid; melting point 193-194 ° C., 9 g of this acetyl compound are dissolved in 60 ml of 2N sodium hydroxide solution and refluxed for 7 hours; the mixture is then cooled and adjusted with 2N hydrochloric acid to pH 7. The 2- [4- (ss-N-methylaminoethyl-benzenesulfonamido] -5- obtained in this way) Isobutyl-pyrimidine melts at 213-215 C.



  The following were prepared in an analogous manner: 2- [4- (ss-T'-methyl-2'-methoxybenzoyl-N-methyl-amino-ethyl) -benzenesulfonamido] -5-isobutyl-pyrimidine of melting point 147-149 ° C., 2nd place - [4- (ss-o-Methoxybenzoyl-N-methyl-aminoethyl) -benzenesulfonamido] -5-isobutyl-pyrimidine of melting point 169-170 C, 2- [4- (ss-m-chlorobenzoyl-N-methyl- aminoethyl) -benzenesulfonamido] -5-isobutyl-pyrimidine of melting point 174-176 C, 2- [4- (s-benzoyl-N-methylamino-ethyl) -benzenesulfonamido] -5-isobutyl-pyrimidine of melting point 170 to 172 C.



  <I> Example 2 </I> 2- [4- (d-2'-methoxy-5'-chlorobenzoyl-N-ethyl-aminoethyl) -benzenesulfonamido] -5-isobutyl-pyrimidine To 3 g of 2- [4- (ss-N-ethylamino-ethyl-benzenesulfonamido] -5-isobutyl-pyrimidine in 30 ml of absolute pyridine are added with stirring to 1.7 g of 5-chloro-2-methoxy-benzoyl chloride and left to stand overnight The mixture is then heated to 100 ° C. for 1 hour, allowed to cool and poured onto ice. The precipitated substance is filtered off with suction and reprecipitated from sodium carbonate hydrochloric acid. Finally, it is recrystallized twice from isopropanol; melting point 148-150 ° C.



  To prepare the starting product, proceed as follows: 10.4 g of 4- (β-acetyl-N-ethylamino-ethyl) -benzenesulfonamide (obtained by reacting 4- (β-acetyl-N-ethylaminoethyl) -benzene with Chlorosulfonic acid and amidation of the sulfochloride; melting point 180-1810 C) are mixed with 6.6 g of 2-chloro-5-isobutyl-pyrimidine and 5.3 g of potassium carbonate and slowly heated to 200 ° C. After heating for 2 hours, it is allowed to cool and the melt is taken up in water.

   It is treated with animal charcoal, filtered and the 2- [4-ss acetyl-N-ethylamino-ethylbenzene-sulfonamido] -5-isobutyl-pyrimidine is precipitated with hydrochloric acid; Mp. 165-168 C. The acetyl compound is then saponified with 3 mol of 2N sodium hydroxide solution for 8 hours to give 2- [4- (ss-N-ethylamino-ethylbenzenesulfonamido] -5-isobutyl-pyrimidine; 238-240 C.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung von neuen antidiabetisch wirksamen Sulfonamiden der Formel (I) in welcher EMI0002.0030 X <SEP> einen <SEP> geraden <SEP> oder <SEP> verzweigten <SEP> Kohlenwasserstoff rest <SEP> von <SEP> 1 <SEP> bis <SEP> 4 <SEP> C-Atomen, <tb> A <SEP> einen <SEP> gegebenenfalls <SEP> substituierten <SEP> Alkyl-, <SEP> Cycloal kyl-, <SEP> Aryl-, <SEP> Aralkyl- <SEP> oder <SEP> Aryloxyalkyl-Rest, <tb> R1 <SEP> einen <SEP> gegebenenfalls <SEP> substituierten <SEP> Alkyl-, <SEP> Cyclo alkyl-, <SEP> Aryl-, <SEP> Aralkyl-, <SEP> Alkoxy-, <SEP> Alkoxyalkyl- <SEP> oder <tb> Alkoxyalkoxy-Rest <SEP> und <tb> R_ <SEP> einen <SEP> niederen <SEP> Mkyl- <SEP> oder <SEP> gegebenenfalls <SEP> substi tuierten <SEP> Aralkylrest bedeuten, dadurch gekennzeichnet, dass man Substan zen der Formel (II) PATENT CLAIM Process for the preparation of new antidiabetic sulfonamides of the formula (I) in which EMI0002.0030 X <SEP> a <SEP> straight <SEP> or <SEP> branched <SEP> hydrocarbon residue <SEP> from <SEP> 1 <SEP> to <SEP> 4 <SEP> carbon atoms, <tb> A <SEP> a <SEP> optionally substituted <SEP> alkyl, <SEP> cycloalkyl, <SEP> aryl, <SEP> aralkyl <SEP> or <SEP> aryloxyalkyl radical , <tb> R1 <SEP> a <SEP> optionally <SEP> substituted <SEP> alkyl-, <SEP> cycloalkyl-, <SEP> aryl-, <SEP> aralkyl-, <SEP> alkoxy-, <SEP> Alkoxyalkyl <SEP> or <tb> alkoxyalkoxy radical <SEP> and <tb> R_ <SEP> mean a <SEP> lower <SEP> alkyl- <SEP> or <SEP> optionally <SEP> substituted <SEP> aralkyl radical, characterized in that substances of the formula (II) (II) mit dem reaktiven Derivat einer Säure der Formel A-CO-OH, umsetzt. (II) with the reactive derivative of an acid of the formula A-CO-OH.
CH444770A 1964-05-20 1966-10-06 Process for the production of new antidiabetic sulfonamides CH490391A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEB0076848 1964-05-20
DEB84050A DE1254153B (en) 1964-05-20 1965-10-09 Process for the preparation of new 2-benzenesulfonamido-pyrimidines
CH1442166A CH490389A (en) 1964-05-20 1966-10-06 Process for the production of new antidiabetic sulfonamides

Publications (1)

Publication Number Publication Date
CH490391A true CH490391A (en) 1970-05-15

Family

ID=27177163

Family Applications (1)

Application Number Title Priority Date Filing Date
CH444770A CH490391A (en) 1964-05-20 1966-10-06 Process for the production of new antidiabetic sulfonamides

Country Status (1)

Country Link
CH (1) CH490391A (en)

Similar Documents

Publication Publication Date Title
CH490391A (en) Process for the production of new antidiabetic sulfonamides
DE951214C (en) Process for the production of N-alkyl-anthranilic acid sulfonic acids and compounds of these sulfonic acids
AT270647B (en) Process for the preparation of new substituted aminopyridines, their salts and optically active isomers
AT206431B (en) Process for the preparation of disulfamylaniline compounds
DE2011026C (en) S-Carboxy-öJ-dimethoxy-1 -thiaisochroman-1,1-dioxide and process for their preparation
AT236382B (en) Process for the preparation of new derivatives of sulfanilamide
AT218006B (en) Process for the preparation of new 2-acyl-4-aminophenol ethers and their salts
AT218524B (en) Process for the preparation of 4-sulfanilamido-2,6-dimethoxy-pyrimidine
AT265286B (en) Process for the production of new sulfonamides
AT216000B (en) Process for the preparation of 6-chloro-7-sulfonamido-1,2,4-benzothiadiazine-1,1-dioxyden
AT257612B (en) Process for the preparation of sulfonamides
CH263037A (en) Process for the preparation of a new derivative of 2-oxy-5-aminobenzoic acid.
AT235840B (en) Process for the production of new sulfonamides
AT287726B (en) Process for the preparation of new 1H-thieno- [3,2-e] -1,4-diazepin-2-ones and their N-oxides and salts
DE1670205A1 (en) Process for the production of new antidiabetic sulfonamides
DE1205105B (en) Process for the preparation of new heterocyclic compounds
CH359711A (en) Process for the preparation of a sulfonamide
DE1168422B (en) Process for the preparation of AEthionylaminoarylamines
CH253169A (en) Process for the preparation of a p-amino-benzene-sulfonacylamide.
DE1670206A1 (en) Process for the production of new antidiabetic sulfonamides
DE1109702B (en) Process for the preparation of aminoaryl compounds
CH423786A (en) Process for the preparation of new sulfonamides of the pyrimidine series
CH279172A (en) Process for the production of an intermediate product.
DE1075588B (en) Process for the preparation of sulfonylureas
CH374643A (en) Process for the preparation of sulfonylureas

Legal Events

Date Code Title Description
PL Patent ceased