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Catalog No.
SMYD3 inhibitor
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IC50: 3 nM

EPZ031686 is the first SMYD3 inhibitor.

Set and Mynd Domain containing 3 (SMYD3), a lysine methyltransferase (KMT) expressed at high levels in a number of different cancer histologies, is reported to be associated with a poor clinical prognosis.

In vitro: EPZ031686 was the first SMYD3 inhibitor found to show double-digit nanomolar cellular activity. In addition, EPZ031686 displayed noncompetitive inhibition to both SAM and MEKK2 with a Ki = 1.2 and 1.1 nM, respectively. Moreover, EPZ031686 showed less than 30% inhibition against 16 histone methyltransferase targets at a 10 μM [1].

In vivo: Male mice i.v. administered a single dose of EPZ031686 at 1 mg/kg showed a moderate clearance of 27 mL/min/kg, which was in very good agreement with the microsomal data, with a volume of distribution at steady state of 2.3 L/kg, translating to a terminal half-life of 1.7 h. Around 20% of the administered dose was excreted unchanged in urine after 24 h, equivalent to a renal clearance of 5.3 mL/min/kg. Bioavailability of 48 and 69 was observed at 5 and 50 mg/kg, respectively, resulting in the EPZ031686 unbound blood concentration remaining above the SMYD3 IC50 value for more than 12 h after a 50 mg/kg p.o. administration [1].

Clinical trial: Up to now, EPZ031686 is still in the preclinical development stage.

[1] Mitchell LH et al.  Novel Oxindole Sulfonamides and Sulfamides: EPZ031686, the First Orally Bioavailable Small Molecule SMYD3 Inhibitor. ACS Med Chem Lett. 2015 Aug 27;7(2):134-8.

Chemical Properties

StorageStore at -20°C
Cas No.1808011-22-4
Solubilityinsoluble in H2O; insoluble in EtOH; ≥104.6 mg/mL in DMSO
Chemical Name6-chloro-2-oxo-N-((1R,3r,5S)-8-(((1-(4,4,4-trifluorobutyl)piperidin-4-yl)methyl)sulfonyl)-8-azabicyclo[3.2.1]octan-3-yl)indoline-5-carboxamide
SDFDownload SDF
Canonical SMILESClC1=CC(N2)=C(CC2=O)C=C1C(N[[email protected]@]3([H])C[[email protected]@](N4S(CC(CC5)CCN5CCCC(F)(F)F)(=O)=O)([H])CC[[email protected]@]4([H])C3)=O
Shipping ConditionEvaluation sample solution: ship with blue ice. All other available sizes: ship with RT, or blue ice upon request.
General tipsFor obtaining a higher solubility, please warm the tube at 37°C and shake it in the ultrasonic bath for a while. Stock solution can be stored below -20°C for several months.

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