UNC1215

UNC1215 is a selective inhibitor of L3MBTL3 with IC50 value of 40 nM [1].
L3MBTL3 is a member of the MBT (malignant brain tumor) family of methyl-lysine reader proteins and is reported to play an important role in haematopoiesis and cancer biology. And it is reported that inhibition of L3MBTL3 can be regarded as a promising target used in clinic [2].  
UNC1215 is a potent L3MBTL3 inhibitor and has a more potent inhibitory ability than other MBT family members. When tested with HEK293 cells transfected with a GFP fusion protein of the 3 MBT domains of L3MBTL3, UNC1215 treatment decreased the recovery time in a dose responsive manner via binding and co-localizing L3MBTL3 [1]. Using AlphaScreen○R methylated histone peptide competition assay, UNC1215 showed high antagonism ability to L3MBTL3 with IC50 value of 24±7.6 nM [3]. As the first potent and selective inhibitor for methyl-lysine reader protein-L3MBTL3-UNC1215 showed highly selective inhibitor ability via antagonizing the mono- and dimethyl-lysine reading function of L3MBTL3 [2].
References:
1.    James, L.I., et al., Discovery of a chemical probe for the L3MBTL3 methyllysine reader domain. Nat Chem Biol, 2013. 9(3): p. 184-91.
2.    James, L.I., et al., Small-molecule ligands of methyl-lysine binding proteins: optimization of selectivity for L3MBTL3. J Med Chem, 2013. 56(18): p. 7358-71.
3.    Camerino, M.A., et al., The structure-activity relationships of L3MBTL3 inhibitors: flexibility of the dimer interface. Medchemcomm, 2013. 4(11): p. 1501-1507.