[1] Charite Univ Med Berlin, Charitepl 1, D-10117 Berlin, Germany
[2] Free Univ Berlin, Charitepl 1, D-10117 Berlin, Germany
[3] Humboldt Univ, Charitepl 1, D-10117 Berlin, Germany
[4] Berlin Inst Hlth, Inst Med Phys & Biophys, Charitepl 1, D-10117 Berlin, Germany
[5] Univ Leipzig, Inst Med Phys & Biophys, Hartelstr 16-18, D-04107 Leipzig, Germany
[6] Friedrich Alexander Univ Erlangen Nurnberg, Comp Chem Ctr, Nagelsbachstr 25, D-91052 Erlangen, Germany
[7] Boehringer Ingelheim Pharma GmbH & Co KG, Dept Med Chem, Birkendorfer Str 65, D-88397 Biberach, Germany
[8] Boehringer Ingelheim Pharma GmbH & Co KG, Dept Drug Discovery Sci, Birkendorfer Str 65, D-88397 Biberach, Germany
[9] Boehringer Ingelheim Pharma GmbH & Co KG, Dept CNS Res, Birkendorfer Str 65, D-88397 Biberach, Germany