GB808071A - Manufacture of new sulphonyl-ureas - Google Patents

Manufacture of new sulphonyl-ureas

Info

Publication number
GB808071A
GB808071A GB14305/56A GB1430556A GB808071A GB 808071 A GB808071 A GB 808071A GB 14305/56 A GB14305/56 A GB 14305/56A GB 1430556 A GB1430556 A GB 1430556A GB 808071 A GB808071 A GB 808071A
Authority
GB
United Kingdom
Prior art keywords
sulphonyl
benzene
urea
methyl
alkyl
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
Application number
GB14305/56A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
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
Application filed by Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB808071A publication Critical patent/GB808071A/en
Expired legal-status Critical Current

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
    • C07C311/50—Compounds containing any of the groups, X being a hetero atom, Y being any atom
    • C07C311/52—Y being a hetero atom
    • C07C311/54—Y being a hetero atom either X or Y, but not both, being nitrogen atoms, e.g. N-sulfonylurea

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention comprises sulphonyl ureas of the general formula <FORM:0808071/IV (b)/1> n which R2 and R3 represent hydrogen atoms or alkyl or alkoxy groups containing not more than 6 carbon atoms and R1 represents an aliphatic or cycloaliphatic hydrocarbon radical containing from 2 to 8, more preferably 3 to 5, carbon atoms, and non-toxic salts of these compounds. The products can be prepared by known methods for the production of sulphonyl ureas, for example, (1) a benzene-sulphonyl isocyanate is reacted with a primary alkylamine, cycloalkylamine, alkenylamine or cycloalkyl-alkylamine, or conversely a benzene sulphonamide is reacted with the appropriate isocyanate, or in place of the isocyanate, a compound which is convertible to an isocyanate, such as an azide, or a urethane or carbamic acid halide may be used; (2) a benzene sulphonyl urea which is unsubstituted in the -NH2 group is converted into a benzene sulphonyl alkyl urea by alkylation, for example by butylation with butylamine, or conversely an alkyl urea is reacted with a benzene sulphonamide; (3) a benzene sulphonic acid chloride is reacted with an iso-urea alkyl ether and the product obtained is converted by acid hydrolysis into the desired sulphonyl urea; (4) the corresponding benzene sulphonyl thiourea compound is prepared and the sulphur is eliminated therefrom in a conventional manner, e.g. by treatment with a heavy metal oxide or salt; (5) an N-benzene-sulphonyl-N1-alkylguanidine is made (for example by treating a benzenesulphonyl-cyanamide with butylamine or another primary amine), and the resulting guanidine is hydrolysed. In the above processes, the benzene sulphonyl compound may be alkyl- or alkoxy-substituted and the alkylamine may be an alkenylamine cycloalkylamine or cycloalkyl-alkylamine. The preferred processes are the reaction of a sulphonamide of the formula <FORM:0808071/IV (b)/2> with an isocyanate R1-NCO and the reaction of a benzene sulphonyl carbamic acid ester <FORM:0808071/IV (b)/3> in which R4 is a hydrocarbon residue, with an amine R1NH2. Examples describe the preparation of N-benzenesulphonyl-N1-n-butyl urea and the corresponding p-methyl-, p-ethyl-, p-n-propyl- and p-methoxy-derivatives; p-methyl-, p-methoxy-, m-methyl- and 3:4-dimethoxy-, N - benzenesulphonyl - N1 - isobutyl - urea; N-p - methylphenylsulphonyl - N1 - tert. - butyl-, sec. - butyl -, cyclohexyl -, allyl -, iso - amyl-, n - amyl -, cyclopentyl -, heptyl - (4), cyclo - hexylmethyl-, and n-hexyl-urea; and urea derivatives in which the N- and N1-substituents are respectively p-ethylphenylsulphonyl, cyclohexyl, 2 : 4 - dimethylphenylsulphonyl, cyclohexyl; m-methoxyphenylsulphonyl, n-hexyl; m-methoxyphenylsulphony, cyclohexyl. Many other products are specified. N - 4 - Methyl - benzenesulphonyl - carbamic acid ethyl ester and the corresponding methyl ester are made by treating 4-methylbenzenesulphonamide with ethyl or methyl chloroformate in the presence of potassium carbonate. N - 4 - Methylbenzenesulphonyl - and carbamoyl chloride is made by passing hydrogen chloride into 4-methylbenzenesulphonyl isocyanate.ALSO:Preparations suitable for the oral treatment of diabetes comprise compounds of the formula <FORM:0808071/VI/1> wherein R1 is an aliphatic or cycloaliphatic hydrocarbon radical of 2-8 carbon atoms and R2 and R3 are each hydrogen or an alkyl of alkoxy group of 1-6 carbon atoms, or salts of these compounds with bases which give physiologically tolerable salts in admixture with a pharmaceutically suitable carrier. The preparations suitably take the form of tablets, pills, capsules, cachets, mixtures, solutions or powders containing for example 0.5 grams of sulphonyl urea compound per dosage unit. In the above general formula R1 may suitably be an alkyl group such as propyl, butyl, pentyl, hexyl, heptyl or octyl, an alkenyl group such as allyl or crotyl, a cycloalkyl group such as cyclopentyl or cyclohexyl, or a cycloalkyl-alkyl group such as cyclohexyl-methyl or cyclohexylethyl. The benzene residue containing R2 and R3 is preferably a p-methyl-phenyl group. Many suitable products are specified (see Group IV (b)). In an example N-(4-methyl-benzene-sulphonyl) - N1 - n - butyl - urea is made up into tablets with wheat or maize starch, talc and magnesium stearate.
GB14305/56A 1955-05-28 1956-05-08 Manufacture of new sulphonyl-ureas Expired GB808071A (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE342441X 1955-05-28
DE808071X 1955-08-08
DE30955X 1955-09-03
DE141055X 1955-10-14
DE191055X 1955-10-19
DE350170X 1955-12-19
DE280159X 1959-01-28

Publications (1)

Publication Number Publication Date
GB808071A true GB808071A (en) 1959-01-28

Family

ID=58044242

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14305/56A Expired GB808071A (en) 1955-05-28 1956-05-08 Manufacture of new sulphonyl-ureas

Country Status (3)

Country Link
CY (1) CY188A (en)
GB (1) GB808071A (en)
MY (1) MY6000026A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1179200B (en) * 1960-01-26 1964-10-08 Hoechst Ag Process for the preparation of N-benzenesulfonyl-N'-methyl-cyclohexylureas
CN104649945A (en) * 2015-02-05 2015-05-27 中国农业大学 Preparation method of sulfonylurea and sulfonamide formate compounds
CN117903018A (en) * 2024-01-11 2024-04-19 内蒙古科技大学 Preparation method of tolbutamide crystal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1179200B (en) * 1960-01-26 1964-10-08 Hoechst Ag Process for the preparation of N-benzenesulfonyl-N'-methyl-cyclohexylureas
CN104649945A (en) * 2015-02-05 2015-05-27 中国农业大学 Preparation method of sulfonylurea and sulfonamide formate compounds
CN117903018A (en) * 2024-01-11 2024-04-19 内蒙古科技大学 Preparation method of tolbutamide crystal

Also Published As

Publication number Publication date
CY188A (en) 1959-11-23
MY6000026A (en) 1960-12-31

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