3,4-Dihydro-4-oxo-2H-1-benzopyranyloxy alkanoic acid derivatives

3,4-Dihydro-4-oxo-2H-1-benzopyranyloxy alkanoic acid derivatives

It has been found that the novel compounds of the formula wherein R is hydrogen or lower alkyl, R is hydrogen or halogen, R is hydrogen or lower alkyl, R is hydrogen or lower alkyl, R is hydrogen, lower alkyl or aralkyl, X is alkylene and n is an integer from 1 to 6, the enantiomers thereof and, whe...

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Bibliographische Detailangaben
Hauptverfasser: WEBER, GIUSEPPE FEDERICO, COHEN, NOAL
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
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Beschreibung
Zusammenfassung:It has been found that the novel compounds of the formula wherein R is hydrogen or lower alkyl, R is hydrogen or halogen, R is hydrogen or lower alkyl, R is hydrogen or lower alkyl, R is hydrogen, lower alkyl or aralkyl, X is alkylene and n is an integer from 1 to 6, the enantiomers thereof and, when R is hydrogen, the salts thereof with pharmaceutically acceptable bases have antiallergic properties and can accordingly be used as medicaments for the treatment or prevention of allergic conditions. The compounds of formula I can be manufactured by reacting a compound of the formula with a compound of the formula and optionally hydrolyzing the compound thus obtained.