| Bioactivity | DSM265 is a long-duration inhibitor of P. falciparum dihydroorotate dehydrogenase (PfDHODH) with an IC50 of 8.9 nM. DSM265 can also inhibit the growth of Pf3D7 parasites with an EC50 of 4.3 nM[1][2]. | ||||||||||||
| Target | IC50: 8.9 nM (PfDHODH)EC50: 4.3 nM (P. falciparum 3D7 parasites) | ||||||||||||
| In Vivo | DSM265 (0.5 to 75 mg/kg; Oral administration; twice daily; for 4 days; NOD-scid IL-2Rγnull (NSG) mice) has potent in vivo antimalarial activity with 90% effective dose (ED90) of 3 mg/kg per day (1.5 mg/kg twice daily). The maximum rate of parasite killing occurred at and above a dose of 13 mg/kg per day (6.4 mg/kg twice daily). DSM265 has moderate terminal elimination half-life (t1/2) of 2-4 hours for mice (0.5 to 75 mg/kg, oral) [2]. Animal Model: | ||||||||||||
| Name | DSM265 | ||||||||||||
| CAS | 1282041-94-4 | ||||||||||||
| Formula | C14H12F7N5S | ||||||||||||
| Molar Mass | 415.33 | ||||||||||||
| Appearance | Solid | ||||||||||||
| Transport | Room temperature in continental US; may vary elsewhere. | ||||||||||||
| Storage |
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| Reference | [1]. Kokkonda S, et al. Tetrahydro-2-naphthyl and 2-Indanyl Triazolopyrimidines Targeting Plasmodium falciparumDihydroorotate Dehydrogenase Display Potent and Selective Antimalarial Activity. J Med Chem. 2016 Jun 9;59(11):5416-31. [2]. Phillips MA, et al. A long-duration dihydroorotate dehydrogenase inhibitor (DSM265) for prevention and treatment of malaria. Sci Transl Med. 2015 Jul 15;7(296):296ra111. |