| abstract |
The present invention relates to compounds of the general formula (I), or pharmaceutically acceptable salts or acid addition salts thereof, racemic mixtures, or the corresponding enantiomers and / or optical isomers and / or stereoisomers thereof, (I) In this formula, R < 1 > is lower alkyl; R 2 is phenyl or pyridinyl, wherein the N atom in the pyridinyl group can be in different positions; n is 0, 1 or 2; V and U are independently of each other O or CH 2 , wherein V and U can not be O at the same time; L is a 5 or 6 membered heteroaryl group selected from: . Such compounds may be used for the treatment of Parkinson's disease, anxiety, vomiting, obsessive compulsive disorder, autism, neuroprotection, cancer, depression and type 2 diabetes. |