Dot1L-IN-4

• CAT Number: I017531
• CAS Number: 2565705-02-2
• Molecular Formula: C28H27ClF2N8O5S
• Molecular Weight: 661.08
• Purity: ≥95%
• Synonyms: 1-N-[(S)-(3-chloropyridin-2-yl)-(2,2-difluoro-1,3-benzodioxol-4-yl)methyl]-2-N-(4-methoxy-6-piperazin-1-yl-1,3,5-triazin-2-yl)-4-methylsulfonylbenzene-1,2-diamine
• InChI: InChI=1S/C28H27ClF2N8O5S/c1-42-27-37-25(36-26(38-27)39-13-11-32-12-14-39)35-20-15-16(45(2,40)41)8-9-19(20)34-22(23-18(29)6-4-10-33-23)17-5-3-7-21-24(17)44-28(30,31)43-21/h3-10,15,22,32,34H,11-14H2,1-2H3,(H,35,36,37,38)/t22-/m0/s1
• InChIKey: QJIMSJUUARCROQ-QFIPXVFZSA-N
• SMILES: COC1=NC(=NC(=N1)N2CCNCC2)NC3=C(C=CC(=C3)S(=O)(=O)C)NC(C4=C5C(=CC=C4)OC(O5)(F)F)C6=C(C=CC=N6)Cl

Dot1L-IN-4 is a potent disruptor of telomeric silencing 1-like protein (DOT1L) inhibitor with an IC50 SPA DOT1L of 0.11 nM[1].
Dot1L-IN-4 (Compound 10) is tested in cellular assays to assess the ability to inhibit the dimethylation of H3K79 in HeLa cells (ED50 H3K79me2 Elisa=1.7 nM) and HOXA9 gene expression in Molm-13 cells (ED50 HOXA9 RGA=33 nM). Dot1L-IN-4 also inhibits mixed lineage leukemia (MLL) with an IC50 of 99 µM[1].
Dot1L-IN-4 (Compound 10; 300 mg/kg; p.o.; qd) is not tolerated at such a high dose by tumor xenograft bearing mice, and at a 6-fold reduced dose, the tumor growth as well as the HOXA9 reporter gene mRNA are reduced only by less than half as compared to control animals[1].

Reference

[1]. Frédéric Stauffer, et al. New Potent DOT1L Inhibitors for in Vivo Evaluation in Mouse. ACS Med. Chem. Lett. 2019, 10, 12, 1655-1660.