GSK321 

GSK321 is a potent and selective IDH1 mutant inhibitor. GSK321 potently inhibited intracellular 2-HG production in HT-1080 cells, with a half-maximal effective concentration (EC50) of 85 nM by LC/MS/MS analysis. The inhibition of mutant IDH1 by GSK321 overcomes the pathognomonic differentiation block of AML cells and induces myeloid differentiation of IDH1 mutant cells at the level of leukemic blasts and more stem-like cells.

MedKoo Cat#: 407271

Name: GSK321

CAS#: 1816331-63-1

Chemical Formula: C28H28FN5O3

Exact Mass: 501.2176

Molecular Weight: 501.56

Elemental Analysis: C, 67.05; H, 5.63; F, 3.79; N, 13.96; O, 9.57

Related CAS #:No Data

Synonym:GSK321; GSK 321; GSK-321.

IUPAC/Chemical Name:(R)-1-(4-Fluorobenzyl)-N-(3-((S)-1-hydroxyethyl)phenyl)-7-methyl-5-(1H-pyrrole-2-carbonyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine-3-carboxamide

InChi Key:IVFDDVKCCBDPQZ-MSOLQXFVSA-N

InChi Code: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+/m1/s1

SMILES Code:O=C(C1=NN(CC2=CC=C(F)C=C2)C3=C1CN(C(C4=CC=CN4)=O)C[C@H]3C)NC5=CC=CC([C@@H](O)C)=C5

Appearance:Solid powder

Purity:>98% (or refer to the Certificate of Analysis)

Shipping Condition:Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility:Soluble in DMSO, not in water

Shelf Life:>2 years if stored properly

Drug Formulation:This drug may be formulated in DMSO

Stock Solution Storage:0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:2934.99.9001

Biological target:GSK321 is a potent and selective IDH1 mutant inhibitor.

In vitro activity:Mechanistic cellular activity of GSK321 and GSK990 was evaluated in HT-1080 fibrosarcoma cells, which harbor an R132C IDH1 mutation and have markedly elevated levels of 2-hydroxyglutarate (2-HG). After 24 h of treatment with the compounds, GSK321 potently inhibited intracellular 2-HG production in HT-1080 cells, with a half-maximal effective concentration (EC50) of 85 nM by LC/MS/MS analysis (Fig. 1b).

Reference: Nat Chem Biol. 2015 Nov;11(11):878-86. https://pubmed.ncbi.nlm.nih.gov/26436839/

In vivo activity:TBD

Note: There can be variations in solubility for the same chemical from different vendors or different batches from the same vendor. The following factors can affect the solubility of the same chemical: solvent used for crystallization, residual solvent content, polymorphism, salt versus free form, degree of hydration, solvent temperature. Please use the solubility data as a reference only. Warming and sonication will facilitate dissolving. Still have questions? Please contact our Technical Support scientists.

Formulation protocol:

1. Okoye-Okafor UC, Bartholdy B, Cartier J, Gao EN, Pietrak B, Rendina AR, Rominger C, Quinn C, Smallwood A, Wiggall KJ, Reif AJ, Schmidt SJ, Qi H, Zhao H, Joberty G, Faelth-Savitski M, Bantscheff M, Drewes G, Duraiswami C, Brady P, Groy A, Narayanagari SR, Antony-Debre I, Mitchell K, Wang HR, Kao YR, Christopeit M, Carvajal L, Barreyro L, Paietta E, Makishima H, Will B, Concha N, Adams ND, Schwartz B, McCabe MT, Maciejewski J, Verma A, Steidl U. New IDH1 mutant inhibitors for treatment of acute myeloid leukemia. Nat Chem Biol. 2015 Nov;11(11):878-86. doi: 10.1038/nchembio.1930. Epub 2015 Oct 5. PMID: 26436839; PMCID: PMC5155016.

In vitro protocol:

1. Okoye-Okafor UC, Bartholdy B, Cartier J, Gao EN, Pietrak B, Rendina AR, Rominger C, Quinn C, Smallwood A, Wiggall KJ, Reif AJ, Schmidt SJ, Qi H, Zhao H, Joberty G, Faelth-Savitski M, Bantscheff M, Drewes G, Duraiswami C, Brady P, Groy A, Narayanagari SR, Antony-Debre I, Mitchell K, Wang HR, Kao YR, Christopeit M, Carvajal L, Barreyro L, Paietta E, Makishima H, Will B, Concha N, Adams ND, Schwartz B, McCabe MT, Maciejewski J, Verma A, Steidl U. New IDH1 mutant inhibitors for treatment of acute myeloid leukemia. Nat Chem Biol. 2015 Nov;11(11):878-86. doi: 10.1038/nchembio.1930. Epub 2015 Oct 5. PMID: 26436839; PMCID: PMC5155016.

In vivo protocol:TBD

References:

1: Okoye-Okafor UC, Bartholdy B, Cartier J, Gao EN, Pietrak B, Rendina AR, Rominger C, Quinn C, Smallwood A, Wiggall KJ, Reif AJ, Schmidt SJ, Qi H, Zhao H, Joberty G, Faelth-Savitski M, Bantscheff M, Drewes G, Duraiswami C, Brady P, Groy A, Narayanagari SR, Antony-Debre I, Mitchell K, Wang HR, Kao YR, Christopeit M, Carvajal L, Barreyro L, Paietta E, Makishima H, Will B, Concha N, Adams ND, Schwartz B, McCabe MT, Maciejewski J, Verma A, Steidl U. New IDH1 mutant inhibitors for treatment of acute myeloid leukemia. Nat Chem Biol. 2015 Nov;11(11):878-86. doi: 10.1038/nchembio.1930. Epub 2015 Oct 5. PubMed PMID: 26436839.