[EN] DERIVATIVES OF 6, 7-DIHYDRO-3H-OXAZOLO [3, 4-A] PYRAZINE-5, 8- DIONE<br/>[FR] DÉRIVÉS DE 6,7-DIHYDRO-3H-OXAZOLO[3,4-A]PYRAZINE-5,8-DIONE
申请人:BIOLAB SANUS FARMACEUTICA LTDA
公开号:WO2012019254A1
公开(公告)日:2012-02-16
The present invention describes a series of derivatives of 6, 7-dihydro-3H-oxazolo [3, 4-a] pyrazine-5, 8-dione, mixtures thereof, their pharmaceutically acceptable salts, which are inhibitors of PDE-5, possessing vasodilatator properties and relaxing effects. In particular, the derivative (J¾)-3-(l,3- benzodioxol-5-yl ) -1- ( lH-indol-3-yl ) -7-methyl-6, 7- dihydro [1, 3] oxazolo [3, 4-a] pyrazine-5, 8-dione, its enantiomer (S) -3- (1, 3-benzodioxol-5-yl) -1- ( lH-indol-3-yl ) -7-methyl-6, 7- dihydro [1,3] oxazolo [3, 4-a] pyrazine-5, 8-dione. The present invention describes, additionally, processes for the preparation of said compounds, pharmaceutical compositions containing them, as well as uses as inhibitors of the enzyme phosphodiesterase type 5 (PDE-5) in the treatment of the erectile dysfunction and PDE-5 inhibitor treatable disorders.