| abstract |
The application is directed to compounds of formulae (IA) and (IB) and their salts and solvates, wherein R1a, R2a, R3a, A1, A2, A3, R1b, R2b, R3b, B1, and B2 are as set forth in the specification, as well as to methods for their preparation, pharmaceutical compositions comprising the same, and use thereof for the treatment and/or prevention of, e.g., lysosomal storage diseases, such as Gaucher's disease, and α-synucleinopathies, such as Parkinson's disease. |