S63845

• CAT Number: I009265
• CAS Number: 1799633-27-4
• Molecular Formula: C39H37ClF4N6O6S
• Molecular Weight: 829.26
• Purity: ≥95%
• Synonyms: (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[2-(2,2,2-trifluoroethyl)pyrazol-3-yl]methoxy]phenyl]propanoic acid
• InChI: InChI=1S/C39H37ClF4N6O6S/c1-23-26(7-8-28(34(23)40)53-18-17-49-15-13-48(2)14-16-49)32-33-36(45-22-46-37(33)57-35(32)29-9-10-31(41)55-29)56-30(38(51)52)19-24-5-3-4-6-27(24)54-20-25-11-12-47-50(25)21-39(42,43)44/h3-12,22,30H,13-21H2,1-2H3,(H,51,52)/t30-/m1/s1
• InChIKey: ZFBHXVOCZBPADE-SSEXGKCCSA-N
• SMILES: CC1=C(C=CC(=C1Cl)OCCN2CCN(CC2)C)C3=C(SC4=NC=NC(=C34)OC(CC5=CC=CC=C5OCC6=CC=NN6CC(F)(F)F)C(=O)O)C7=CC=C(O7)F

S63845 is a potent and selective myeloid cell leukemia 1 (MCL1) inhibitor with a Kd of 0.19 nM for human MCL1[1].
The pro-survival protein myeloid cell leukemia 1 (MCL1) is over expressed in many cancers. S63845 is a small molecule that specifically binds with high affinity to the BH3-binding groove of MCL1. S63845 potently kills MCL1-dependent cancer cells, including multiple myeloma, leukaemia and lymphoma cells, by activating the BAX/BAK-dependent mitochondrial apoptotic pathway. The activity of S63845 is next evaluated in a panel of eight AML cell lines: all lines are sensitive to S63845 (IC50=4-233 nM)[1].
S63845 shows potent anti-tumour activity with an acceptable safety margin as a single agent in several cancers. Intravenously injected (i.v.) S63845 exerts dose-dependent anti-tumour activity in human multiple myeloma (H929 and AMO1) xenografts in immunocompromised mice, with maximal tumour growth inhibition of 114% in the AMO1 model and 103% in the H929 model. At 25 mg/kg, S63845 induces complete regression in 7 out of 8 of the mice at 100 days after treatment in the AMO1 model[1].

Reference

[1]. Kotschy A, et al. The MCL1 inhibitor S63845 is tolerable and effective in diverse cancer models. Nature. 2016 Oct 27;538(7626):477-482.
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