[EN] The present invention relates to compounds of formula (I); wherein R1 to R4 are as defined in the description and claims, and pharmaceutically acceptable salts thereof. The compounds are useful for the treatment and/or prophylaxis of diseases which are associated with DPP-IV, such as diabetes, particularly non-insulin dependent diabetes mellitus, and impaired glucose tolerance. [FR] La présente invention concerne des composés de formule (I), dans laquelle R1 à R4 sont tels que définis dans la description et les revendications, ainsi que des sels pharmaceutiquement acceptables de ces composés. Lesdits composés sont utiles pour le traitement et/ou la prévention de maladies associées à DPP-IV, telles que le diabète, et notamment le diabète sucré non insulinodépendant, ainsi que la diminution de la tolérance au glucose.
The present invention relates to compounds of formula (I)
wherein R
1
to R
4
are as defined in the description and claims, and pharmaceutically acceptable salts thereof. The compounds are useful for the treatment and/or prophylaxis of diseases which are associated with DPP-IV, such as diabetes, particularly non-insulin dependent diabetes mellitus, and impaired glucose tolerance.
The present invention relates to compounds of formula (I)
wherein R
1
to R
4
are as defined in the description and claims, and pharmaceutically acceptable salts thereof. The compounds are useful for the treatment and/or prophylaxis of diseases which are associated with DPP-IV, such as diabetes, particularly non-insulin dependent diabetes mellitus, and impaired glucose tolerance.