(S,R)-GSK321

• CAT Number: I042949
• CAS Number: 1816272-18-0
• Molecular Formula: C28H28FN5O3
• Molecular Weight: 501.55
• Purity: ≥95%
• Synonyms: (7S)-1-[(4-fluorophenyl)methyl]-N-[3-[(1R)-1-hydroxyethyl]phenyl]-7-methyl-5-(1H-pyrrole-2-carbonyl)-6,7-dihydro-4H-pyrazolo[4,3-c]pyridine-3-carboxamide
• InChI: InChI=1S/C28H28FN5O3/c1-17-14-33(28(37)24-7-4-12-30-24)16-23-25(27(36)31-22-6-3-5-20(13-22)18(2)35)32-34(26(17)23)15-19-8-10-21(29)11-9-19/h3-13,17-18,30,35H,14-16H2,1-2H3,(H,31,36)/t17-,18+/m0/s1
• InChIKey: IVFDDVKCCBDPQZ-ZWKOTPCHSA-N
• SMILES: CC1CN(CC2=C1N(N=C2C(=O)NC3=CC=CC(=C3)C(C)O)CC4=CC=C(C=C4)F)C(=O)C5=CC=CN5

(S,R)-GSK321 is a potent, selective mutant IDH1 inhibitor with IC50 values of 2.9, 3.8, 4.6 and 46 nM for R132G, R132C, R132H and WT IDH1, respectively, and >100-fold selectivity over IDH2. (S,R)-GSK321 induces decrease in intracellular 2-HG, abrogation of the myeloid differentiation block and induction of granulocytic differentiation at the level of leukemic blasts and more immature stem-like cells. (S,R)-GSK321can be used for research of acute myeloid leukemia (AML) and other cancers[1].
(S,R)-GSK321 (0.1-10000 nM; 24 h) inhibits intracellular 2-HG production in HT1080 cells with an EC50 value of 85 nM[1].
(S,R)-GSK321 (0-5 μM; 48 h; HT1080 fibrosarcoma cells) leads to reduction of histone H3K9 dimethylation (H3K9me2)[1].
(S,R)-GSK321 (3 μM; 22 d) decreases intracellular 2-HG in a dose-dependent manner (R132G, 0.13-fold; R132C, 0.15-fold; R132H, 0.29-fold)[1].
(S,R)-GSK321 (3 μM; 15 d) affects proliferation of primary IDH1 mutant AML cells[1].
(S,R)-GSK321 (3 μM; 9 d) induces differentiation in primary IDH1 mutant AML blasts and immature stem-like cells[1].
(S,R)-GSK321 (150 mg/kg; i.p.; daily, for 15 d; male CD-1 mice with IDH1 mutant AML xenograft) reduces leukemic blasts in vivo[1].

Reference

[1]. Okoye-Okafor UC, et, al. New IDH1 mutant inhibitors for treatment of acute myeloid leukemia. Nat Chem Biol. 2015 Nov;11(11):878-86.
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