Compounds of formula (I):
wherein R1, R2, and R3 are defined in the specification. The compounds are useful for treating or reducing the risk of reversible obstructive airways disease.
Heterocyclic compounds and their preparation and use
申请人:NOVO NORDISK A/S
公开号:EP0311321A2
公开(公告)日:1989-04-12
New heterocyclic compounds having the general formula
wherein R³ is
or CO₂R′ wherein R′ is C₁₋₆-alkyl, C₃₋₇-cycloalkyl or C₁₋₆-alkoxymethyl; R⁴ is C₁₋₆-alkyl; -S- is
and wherein R⁵ and R⁶ independently are hydrogen, C₁₋₆-alkyl, or aryl.
The compounds are useful in psychopharmaceutical preparations as anticonvulsants, anxiolytics, hypnotics, and in improving the cognitive function of the brain of mammals.