PROCESS FOR PREPARING DIHYDROBENZOPYRAN DERIVATIVES AND OF PHARMACEUTICAL COMPOSITIONS CONTAINING THE SAME

PROCESS FOR PREPARING DIHYDROBENZOPYRAN DERIVATIVES AND OF PHARMACEUTICAL COMPOSITIONS CONTAINING THE SAME

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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GIUSEPPE F. WEBER, NOAL COHEN
Format: Patent
Sprache:eng
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.