GB899362A - Quinazolone sulphonamides - Google Patents
Quinazolone sulphonamidesInfo
- Publication number
- GB899362A GB899362A GB167759A GB167759A GB899362A GB 899362 A GB899362 A GB 899362A GB 167759 A GB167759 A GB 167759A GB 167759 A GB167759 A GB 167759A GB 899362 A GB899362 A GB 899362A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphamoyl
- hydrogen
- heating
- anthranilic
- alkyl radical
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/70—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings condensed with carbocyclic rings or ring systems
- C07D239/72—Quinazolines; Hydrogenated quinazolines
- C07D239/86—Quinazolines; Hydrogenated quinazolines with hetero atoms directly attached in position 4
- C07D239/88—Oxygen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention comprises 4-quinazolones having one of the tautomeric formulae <FORM:0899362/IV (b)/1> <FORM:0899362/IV (b)/2> <FORM:0899362/IV (b)/3> and alkali metal and alkaline earth metal salts thereof, wherein R1 is hydrogen, halogen, e.g. Cl, Br, F, C1-5 alkyl or alkoxy or a nitro or amino group, R1 is hydrogen or a C1-5 alkyl radical, R3 is hydrogen, an alkyl radical of 1-11 carbon atoms or a molecular aryl or a mononuclear aryl substituted C1-3 alkyl radical; and their preparation by (a) heating a sulphamoyl N-acyl-anthranilic amide, (b) heating a sulphamoyl anthranilic amide with formic acid or ethyl formate, or (c) heating a sulphamoyl anthranilic acid with formamide. The anthranilic acid and amide derivatives used as starting materials are made by the processes of Specification 898,782. Pharmaceutical preparations having diuretic and natriuretic activity comprise the above 4-quinazalones together with an inert, non-toxic diluent, suitably in the form of tablets, pills or capsules for oral administration or in solution in a dilute alkali or polyethylene glycol to provide injectable solutions for parenteral administration. Tablets comprising 7 - chloro - 6 - sulphamoyl - 4-quinazolone, starch and magnesium stearate are described.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US71038658A | 1958-01-22 | 1958-01-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB899362A true GB899362A (en) | 1962-06-20 |
Family
ID=24853829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB167759A Expired GB899362A (en) | 1958-01-22 | 1959-01-16 | Quinazolone sulphonamides |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE574892A (en) |
CH (1) | CH375362A (en) |
ES (1) | ES246958A1 (en) |
GB (1) | GB899362A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4906635A (en) * | 1983-11-25 | 1990-03-06 | Schering Corporation | Carboxyalkyl dipeptides as antiglaucoma agents |
US5017567A (en) * | 1983-11-25 | 1991-05-21 | Schering Corporation | Carboxyalkyl dipeptides as antiglaucoma agents |
-
1959
- 1959-01-16 GB GB167759A patent/GB899362A/en not_active Expired
- 1959-01-20 BE BE574892A patent/BE574892A/en unknown
- 1959-01-22 ES ES0246958A patent/ES246958A1/en not_active Expired
- 1959-01-22 CH CH6862859A patent/CH375362A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4906635A (en) * | 1983-11-25 | 1990-03-06 | Schering Corporation | Carboxyalkyl dipeptides as antiglaucoma agents |
US5017567A (en) * | 1983-11-25 | 1991-05-21 | Schering Corporation | Carboxyalkyl dipeptides as antiglaucoma agents |
Also Published As
Publication number | Publication date |
---|---|
BE574892A (en) | 1959-07-20 |
ES246958A1 (en) | 1959-06-01 |
CH375362A (en) | 1964-02-29 |
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