The invention relates to an assay for identifying an agent that modulates the interaction of a mRNA with a target protein, e.g. HuR and to organic compounds of formula I
wherein R
1
, R
2
and R
3
are as defined above and their use, e.g. as an inhibitor on the complex-formation of an ARE-containing mRNA and a target protein.
The invention relates to compounds of Formula (I). Compounds of the present invention are inhibitors of sphingosine kinase 3, and are useful in the treatment of various disorders and conditions, such as inflammatory disorders.