CH466281A - Process for the preparation of benzenesulfonyl semicarbazides - Google Patents
Process for the preparation of benzenesulfonyl semicarbazidesInfo
- Publication number
- CH466281A CH466281A CH972166A CH972166A CH466281A CH 466281 A CH466281 A CH 466281A CH 972166 A CH972166 A CH 972166A CH 972166 A CH972166 A CH 972166A CH 466281 A CH466281 A CH 466281A
- Authority
- CH
- Switzerland
- Prior art keywords
- methyl
- methoxy
- benzenesulfonyl
- dimethyl
- preparation
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 12
- LSNDGFYQJRXEAR-UHFFFAOYSA-N benzenesulfonamidourea Chemical class NC(=O)NNS(=O)(=O)C1=CC=CC=C1 LSNDGFYQJRXEAR-UHFFFAOYSA-N 0.000 title claims description 6
- 238000002360 preparation method Methods 0.000 title claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 3
- 150000007513 acids Chemical class 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 125000005843 halogen group Chemical group 0.000 claims description 3
- 125000002947 alkylene group Chemical group 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052717 sulfur Inorganic materials 0.000 claims 1
- 239000011593 sulfur Substances 0.000 claims 1
- 239000008280 blood Substances 0.000 description 7
- 210000004369 blood Anatomy 0.000 description 7
- -1 methoxy, ethoxy, propoxy, butyloxy, pentyloxy Chemical group 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 150000001555 benzenes Chemical class 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 231100000053 low toxicity Toxicity 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- ZXLNOQLIBVACTD-UHFFFAOYSA-N (methylideneamino)urea Chemical compound NC(=O)NN=C ZXLNOQLIBVACTD-UHFFFAOYSA-N 0.000 description 1
- ASRMWYDEZPXXBA-UHFFFAOYSA-N (sulfonylamino)urea Chemical class NC(=O)NN=S(=O)=O ASRMWYDEZPXXBA-UHFFFAOYSA-N 0.000 description 1
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 241000416162 Astragalus gummifer Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- 241000699670 Mus sp. Species 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229920001615 Tragacanth Polymers 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 239000003472 antidiabetic agent Substances 0.000 description 1
- 229940125708 antidiabetic agent Drugs 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- JWPWVPPTDSULMI-UHFFFAOYSA-N benzenesulfonamidothiourea Chemical class NC(=S)NNS(=O)(=O)C1=CC=CC=C1 JWPWVPPTDSULMI-UHFFFAOYSA-N 0.000 description 1
- GHDLZGOOOLEJKI-UHFFFAOYSA-N benzenesulfonylurea Chemical class NC(=O)NS(=O)(=O)C1=CC=CC=C1 GHDLZGOOOLEJKI-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- RCTYPNKXASFOBE-UHFFFAOYSA-M chloromercury Chemical compound [Hg]Cl RCTYPNKXASFOBE-UHFFFAOYSA-M 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 125000001891 dimethoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003707 hexyloxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 230000002218 hypoglycaemic effect Effects 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 1
- 125000004817 pentamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- DUIOPKIIICUYRZ-UHFFFAOYSA-N semicarbazide Chemical compound NNC(N)=O DUIOPKIIICUYRZ-UHFFFAOYSA-N 0.000 description 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- QXKXDIKCIPXUPL-UHFFFAOYSA-N sulfanylidenemercury Chemical compound [Hg]=S QXKXDIKCIPXUPL-UHFFFAOYSA-N 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 235000010487 tragacanth Nutrition 0.000 description 1
- 239000000196 tragacanth Substances 0.000 description 1
- 229940116362 tragacanth Drugs 0.000 description 1
- 125000003258 trimethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
- C07D295/22—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with hetero atoms directly attached to ring nitrogen atoms
- C07D295/28—Nitrogen atoms
- C07D295/32—Nitrogen atoms acylated with carboxylic or carbonic acids, or their nitrogen or sulfur analogues
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D205/00—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom
- C07D205/02—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings
- C07D205/04—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
- C07D211/04—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D211/06—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D211/36—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no 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, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D211/56—Nitrogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
- C07D295/22—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with hetero atoms directly attached to ring nitrogen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Hydrogenated Pyridines (AREA)
Description
Verfahren zur Herstellung von Benzolsulfonyl-semicarbaziden
Es ist bekannt, dass gewisse Benzolsulfonylharn- stoff-Derivate blutzuckersenkende Eigenschaften aufweisen und als per os verabreichbare Antidiabetika geeignet sind (vgl. z. B. Arzneimittelforschung, Band 8 (1958), Seiten 444-454).
Es wurde nun gefunden, dass Benzolsulfonyl-semicarbazide der Formel
EMI1.1
worin X und Y gleiche oder verschiedene Halogenatome, 1 bis 6 Kohlenstoffatome enthaltende Alkyloder Alkoxyreste und Z-Z'-eine 3 bis 7 Kohlenstoffatome enthaltende Alkylenkette, die gegebenenfalls durch weitere niedrigmolekulare Alkylreste substituiert sein kann, bedeuten, und deren Salze blutzuckersenkende Eigenschaften besitzen.
Man erhält die Verfahrensprodukte aus den entsprechenden Benzolsulfonyl-thiosemicarbaziden durch Entschwefelung, beispielsweise mit Hilfe von Oxyden oder Salzen von Schwermetallen oder auch durch Anwendung von Oxydationsmitteln, wie Wasserstoffperoxyd, Natriumperoxyd und salpetrige Säure.
Als Ausgangsstoffe kommen für das Verfahren gemäss der Erfindung im Benzolkern zweifach substituierte Benzolsulfonyl-thioharnstoffe in Betracht. Als Substituenten des Benzolkerns, die gleich oder voneinander verschieden sein können, können Halogenatome, wie Fluor, Chlor, Brom, Jod sowie Alkyl-und Alkoxyreste mit l bis 6 Kohlenstoffatomen, insbesondere Methyl-, Athyl-, Propyl-, Butyl-, Pentyl-und Hexylgruppen sowie Methoxy-, Athoxy-, Propoxy-, Butyloxy-, Pentyloxy-und Hexyloxygruppen in beliebigen Stellungen vorhanden sein.
Beispielsweise kann der Benzolkern durch folgende Gruppen substituiert sein :
3, 4-Dimethyl, 2, 4-Dimethyl, 3, 5-Dimethyl, 2, 6 Dimethyl, 2, 5-Dimethyl, 2, 3-Dimethyl, 3, 4-Dimethoxy, 2, 4-Dimethoxy, 2, 5-Dimethoxy, 2, 6-Dimethoxy, 3, 4-Dichlor, 2, 4-Dichlor, 2, 6-Dichlor, 2, 5-Dichlor, 2, 3-Dichlor, 3, 5-Dichlor, 4-Methyl-3-chlor, 4-Chlor-3-methyl, 2-Methyl-6-chlor, 2-Methyl-5-chlor, 2-Chlor-5-methyl, 3-Methyl-5-chlor, 4-Chlor-3-brom, 4-Brom-3-chlor, 2, 5-Dibrom, 4-Methyl-3-methoxy, 3-Methyl-4-methoxy, 2-Methyl-4-methoxy, 2-Methoxy-5-methyl, 2 Methyl-5-methoxy, 4-Methoxy-3-chlor, 3-Methoxy4-chlor, 2-Methoxy-5-chlor, 4-Methoxy-3-fluor, 4 Methyl-3-fluor, 4-Methyl-3-brom, 4-Methoxy-3-brom, 4-Methyl-3-jod, 4-Methyl-3-äthoxy, 3-Methyl-4-äth- oxy, 2-Methyl-5-äthoxy,
4-Methyl-3- (n)-propoxy, 4- (n)-Butoxy-3-methyl, 2-Methyl-5-isopropyl, 2 Methyl-5-tert.-butyl, 2-Methyl-5-tert. amyl, 2-Methyl 5-hexyl.
Die Gruppe-Z-Z'-kann beispielsweise folgende Bedeutung haben :
Trimethylen, a-Methyl-trimethylen, a, a-Dimethyl-trimethylen, a, a'-Dimethyl-trimethylen, Tetramethylen, a-Methyl-tetramethylen, ss-Methyl-tetramethylen, a, a'-Dimethyl-tetramethylen, Pentamethylen, a-Methylpentamethylen, ss-Methyl-pentamethylen, y-Methylpentamethylen, a, a'-Dimethyl-pentamethylen, Hexamethylen, Heptamethylen, a-Methyl-hexamethylen.
Zur Herstellung der Ausgangsstoffe stehen verschiedene aus der Literatur bekannte Methoden zur Verfügung.
Die Ausführungsformen des Verfahrens gemäss der Erfindung sind hinsichtlich der Reaktionsbedingungen in weiten Grenzen variierbar. Beispielsweise können die Umsetzungen unter Verwendung von Lösungsmitteln bei Zimmertemperatur oder bei erhöhter Temperatur durchgeführt werden.
Die nach dem Verfahren gemäss der Erfindung erhältlichen Benzolsulfonyl-semicarbazide stellen wertvolle Arzneimittel dar, die sich insbesondere durch eine gute blutzuckersenkende Wirksamkeit bei geringer Toxizität auszeichnen.
Wie aus der folgenden Tabelle ersichtlich ist, tritt bereits nach peroraler Verabreichung von 4- (3', 4' Dichlor-benzol-sulfonyl)-1, 1-hexamethylen-semicarba- zid bzw. 4- (2-Methoxy-5'-Chlor-benzolsulfonyl)-1, 1- hexamethylen-semicarbazid in Mengen von 100 mg/kg beim Kaninchen eine Blutzuckersenkung auf, die sich nicht nur durch ihre Höhe sondern insbesondere auch noch durch ihre lange Dauer auszeichnet. Der Blutzukkerwert wurde in der iiblichen Weise nach Hagedorn Jensen bestimmt.
4- (3', 4'-Dichlor-benzol- 4- (2'-Methoxy-5'-Chlor- sulfonyl)-l, 1-hexa-benzolsulfonyl)-l, 1-hexa- methylensemicarbazid methylensemicarbazid , a, o
Zeit in Stunden Blutzucker senkung in
Zeit in Stunden Blutzucker senkung in
1-14 1-26
2-25 2-31
3-28 3-33
4-36 4-37 5-39 5-31
6-40 6-26 24-30
Die erfindungsgemässen Produkte wurden in Form der Natriumsalze verabreicht.
Auf Grund ihrer geringen Toxizität-die peroral an der Maus ermittelte LDso beträgt, für 4- (3', 4'-Dichlorbenzolsulfonyl)-l, l-hexame- thylen-semicarbazid 7 g/kg, für 4-(2'-Methoxy-5'-Chlor- benzolsulfonyl)-l, l-hexamethylen-semicarbazid 10 glkg -besitzen die erfindungsgemäss dargestellten Benzolsulfonylsemicarbazide eine sehr gute Verträglichkeit.
Die Verfahrenserzeugnisse sollen vorzugsweise zur Herstellung von oral verabreichbaren Präparaten mit hypoglykamischer Wirkung zur Behandlung des Diabetes mellitus dienen, wobei die Sulfonylsemicarbazide sowohl als solche oder in Form ihrer Salze mit Basen oder Säuren oder in Gegenwart von Stoffen, die zu einer Salzbildung führen, verwendet werden können.
Zur Salzbildung können beispielsweise herangezogen werden : Alkalische Mittel, wie Alkali-oder Erdalkalihydroxyde,-carbonate,-bicarbonate sowie physiologisch verträgliche organische Basen ; femer Säuren wie Chlorwasserstoffsäure, Bromwasserstoffsäure, Schwe felsäure und Amidosulfonsäure.
Als medizinische Präparate kommen vorzugsweise Tabletten in Betracht, die neben den in Mengen von 0, 05 bis 0, 5 g pro Verabreichungseinheit enthaltenen Verfahrenserzeugnissen die üblichen Hilfs-und Träger- stoffe, wie Talkum, Stärke, Milchzucker, Traganth, Magnesiumstearat, enthalten.
Beispiel 4-(3, 4-Dimethyl-benzolsulfonyl)-l, l-pentamethylen- semicarbazid
8, 6 g Quecksilberchlorid werden in 60 ml Wasser heiss gelöst. Unter Rühren tropft man 25 ml 2n Natronlauge zu. Man erhält eine feine Suspension 6, 6 g 4- (3, 4-Dimethyl-benzolsulfonyl)-1, 1-pentamethy- len-thiosemicarbazid, Schmelzpunkt 177-179 C unter Zers., das man in der berechneten Menge verdünnter Natronlauge gelöst hat. Man rührt 3 Stunden bei ca.
50 C nach, saugt von dem gebildeten Quecksilbersulfid ab, klärt das Filtrat mit Kohle und säuert mit Essigsäure an. Man erhält 4, 8 g 4- (3, 4-Dimethyl-ben- zolsulfonyl)-l, l-pentamethylen-semicarbazid vom Schmelzpunkt 168-171 C nach Umkristallisieren aus Methanol.
Process for the preparation of benzenesulfonyl semicarbazides
It is known that certain benzenesulfonylurea derivatives have blood sugar-lowering properties and are suitable as antidiabetic agents that can be administered orally (cf., for example, Arzneimittelforschung, Volume 8 (1958), pages 444-454).
It has now been found that benzenesulfonyl semicarbazides of the formula
EMI1.1
wherein X and Y are identical or different halogen atoms, alkyl or alkoxy radicals containing 1 to 6 carbon atoms and Z-Z'-are an alkylene chain containing 3 to 7 carbon atoms, which may optionally be substituted by further low molecular weight alkyl radicals, and the salts thereof have blood sugar-lowering properties.
The process products are obtained from the corresponding benzenesulfonyl-thiosemicarbazides by desulfurization, for example with the aid of oxides or salts of heavy metals or by using oxidizing agents such as hydrogen peroxide, sodium peroxide and nitrous acid.
Suitable starting materials for the process according to the invention are benzenesulfonyl-thioureas which are disubstituted in the benzene nucleus. Halogen atoms such as fluorine, chlorine, bromine, iodine and alkyl and alkoxy radicals with 1 to 6 carbon atoms, in particular methyl, ethyl, propyl, butyl, pentyl, can be used as substituents of the benzene nucleus, which may be the same or different from one another. and hexyl groups and methoxy, ethoxy, propoxy, butyloxy, pentyloxy and hexyloxy groups may be present in any positions.
For example, the benzene nucleus can be substituted by the following groups:
3, 4-dimethyl, 2, 4-dimethyl, 3, 5-dimethyl, 2, 6-dimethyl, 2, 5-dimethyl, 2, 3-dimethyl, 3, 4-dimethoxy, 2, 4-dimethoxy, 2, 5 Dimethoxy, 2, 6-dimethoxy, 3, 4-dichloro, 2, 4-dichloro, 2, 6-dichloro, 2, 5-dichloro, 2, 3-dichloro, 3, 5-dichloro, 4-methyl-3 -chlor, 4-chloro-3-methyl, 2-methyl-6-chloro, 2-methyl-5-chloro, 2-chloro-5-methyl, 3-methyl-5-chloro, 4-chloro-3-bromo , 4-bromo-3-chloro, 2,5-dibromo, 4-methyl-3-methoxy, 3-methyl-4-methoxy, 2-methyl-4-methoxy, 2-methoxy-5-methyl, 2-methyl 5-methoxy, 4-methoxy-3-chloro, 3-methoxy-4-chloro, 2-methoxy-5-chloro, 4-methoxy-3-fluoro, 4-methyl-3-fluoro, 4-methyl-3-bromo, 4 -Methoxy-3-bromo, 4-methyl-3-iodine, 4-methyl-3-ethoxy, 3-methyl-4-ethoxy, 2-methyl-5-ethoxy,
4-methyl-3- (n) -propoxy, 4- (n) -butoxy-3-methyl, 2-methyl-5-isopropyl, 2-methyl-5-tert-butyl, 2-methyl-5-tert. amyl, 2-methyl 5-hexyl.
The group-Z-Z'- can have the following meaning, for example:
Trimethylene, a-methyl-trimethylene, a, a-dimethyl-trimethylene, a, a'-dimethyl-trimethylene, tetramethylene, a-methyl-tetramethylene, ss-methyl-tetramethylene, a, a'-dimethyl-tetramethylene, pentamethylene, α-methylpentamethylene, ß-methyl-pentamethylene, γ-methylpentamethylene, α, α'-dimethyl-pentamethylene, hexamethylene, heptamethylene, α-methyl-hexamethylene.
Various methods known from the literature are available for the production of the starting materials.
The embodiments of the process according to the invention can be varied within wide limits with regard to the reaction conditions. For example, the reactions can be carried out using solvents at room temperature or at elevated temperature.
The benzenesulfonyl-semicarbazides obtainable by the process according to the invention are valuable medicaments which are distinguished, in particular, by a good blood sugar-lowering effectiveness with low toxicity.
As can be seen from the following table, already after oral administration of 4- (3 ', 4' dichlorobenzene-sulfonyl) -1, 1-hexamethylene-semicarba- zid or 4- (2-methoxy-5'- Chlorobenzenesulfonyl) -1, 1- hexamethylene-semicarbazide in amounts of 100 mg / kg in rabbits on a blood sugar lowering, which is not only characterized by its height but also especially by its long duration. The blood sugar value was determined in the usual manner according to Hagedorn Jensen.
4- (3 ', 4'-dichlorobenzene-4- (2'-methoxy-5'-chlorosulfonyl) -1, 1-hexa-benzenesulfonyl) -1, 1-hexamethylene semicarbazide methylene semicarbazide, a, o
Time in hours to lower blood sugar in
Time in hours to lower blood sugar in
1-14 1-26
2-25 2-31
3-28 3-33
4-36 4-37 5-39 5-31
6-40 6-26 24-30
The products according to the invention were administered in the form of the sodium salts.
Due to its low toxicity, the oral LD50 determined in mice is 7 g / kg for 4- (3 ', 4'-dichlorobenzenesulfonyl) -l, l-hexamethylene semicarbazide, and for 4- (2'-methoxy) -5'-chlorobenzenesulfonyl) -l, l-hexamethylene-semicarbazide 10 glkg -the benzenesulfonylsemicarbazides prepared according to the invention are very well tolerated.
The products of the process should preferably be used for the production of orally administrable preparations with hypoglycamic effect for the treatment of diabetes mellitus, whereby the sulfonyl semicarbazides can be used either as such or in the form of their salts with bases or acids or in the presence of substances that lead to salt formation .
For salt formation, for example, the following can be used: alkaline agents, such as alkali or alkaline earth metal hydroxides, carbonates, bicarbonates and physiologically compatible organic bases; furthermore acids such as hydrochloric acid, hydrobromic acid, sulfuric acid and amidosulfonic acid.
Tablets which, in addition to the process products contained in quantities of 0.05 to 0.5 g per administration unit, contain the usual auxiliaries and carriers, such as talc, starch, lactose, tragacanth, magnesium stearate, are preferred medical preparations.
Example 4- (3, 4-Dimethyl-benzenesulfonyl) -l, l-pentamethylene semicarbazide
8.6 g of mercury chloride are dissolved in 60 ml of hot water. 25 ml of 2N sodium hydroxide solution are added dropwise with stirring. A fine suspension of 6.6 g of 4- (3,4-dimethyl-benzenesulfonyl) -1, 1-pentamethylene-thiosemicarbazide, melting point 177-179 ° C. with decomposition, is obtained, which has been dissolved in the calculated amount of dilute sodium hydroxide solution . The mixture is stirred for 3 hours at approx.
50 C afterwards, sucks off the formed mercury sulfide, clarifies the filtrate with charcoal and acidifies with acetic acid. 4.8 g of 4- (3, 4-dimethylbenzenesulfonyl) -1, l-pentamethylene semicarbazide with a melting point of 168-171 ° C. are obtained after recrystallization from methanol.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0035040 | 1961-10-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH466281A true CH466281A (en) | 1968-12-15 |
Family
ID=7095831
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH972166A CH466281A (en) | 1961-10-03 | 1962-10-01 | Process for the preparation of benzenesulfonyl semicarbazides |
| CH1151862A CH418327A (en) | 1961-10-03 | 1962-10-01 | Process for the preparation of benzenesulfonylsemicarbazides |
| CH972066A CH466280A (en) | 1961-10-03 | 1962-10-01 | Process for the preparation of benzenesulfonyl semicarbazides |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1151862A CH418327A (en) | 1961-10-03 | 1962-10-01 | Process for the preparation of benzenesulfonylsemicarbazides |
| CH972066A CH466280A (en) | 1961-10-03 | 1962-10-01 | Process for the preparation of benzenesulfonyl semicarbazides |
Country Status (4)
| Country | Link |
|---|---|
| CH (3) | CH466281A (en) |
| DK (2) | DK101978C (en) |
| FR (1) | FR2837M (en) |
| GB (1) | GB979007A (en) |
-
1962
- 1962-10-01 CH CH972166A patent/CH466281A/en unknown
- 1962-10-01 CH CH1151862A patent/CH418327A/en unknown
- 1962-10-01 CH CH972066A patent/CH466280A/en unknown
- 1962-10-02 DK DK330363AA patent/DK101978C/en active
- 1962-10-02 GB GB37347/62A patent/GB979007A/en not_active Expired
- 1962-10-02 DK DK330163AA patent/DK102801C/en active
-
1963
- 1963-10-12 FR FR920243A patent/FR2837M/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| GB979007A (en) | 1965-01-01 |
| FR2837M (en) | 1964-10-12 |
| DK101978C (en) | 1965-06-21 |
| CH466280A (en) | 1968-12-15 |
| CH418327A (en) | 1966-08-15 |
| DK102801C (en) | 1965-10-11 |
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