C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 405/12 (2006.01) A61K 31/34 (2006.01) A61K 31/44 (2006.01) C07D 307/79 (2006.01) C07D 307/94 (2006.01) C07D 493/10 (2006.01) C07D 401/12 (2006.01)
Patent
CA 2195663
The invention concerns compounds of formula (I), in which R1, R2, R3 and R4 have the meanings given in the description. These compounds are novel, effective PDE--inhibitors.
L'invention concerne des composés de formule (I) où R1, R2, R3 et R4 correspondent à la définition donnée dans la description. Ces composés constituent de nouveaux inhibiteurs de la phosphodiestérase efficaces.
Thibaut Ulrich
Ulrich Wolf-Rudiger
Altana Pharma Ag
Byk Gulden Lomberg Chemische Fabrik Gmbh
Gowling Lafleur Henderson Llp
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