IPI-3063

• CAT Number: I020318
• CAS Number: 1425043-73-7
• Molecular Formula: C25H25N7O2
• Molecular Weight: 455.51
• Purity: ≥95%
• Synonyms: 4-amino-6-[[(1S)-1-[8-(1-methyl-6-oxopyridin-3-yl)-1-oxo-2-propan-2-ylisoquinolin-3-yl]ethyl]amino]pyrimidine-5-carbonitrile
• InChI: InChI=1S/C25H25N7O2/c1-14(2)32-20(15(3)30-24-19(11-26)23(27)28-13-29-24)10-16-6-5-7-18(22(16)25(32)34)17-8-9-21(33)31(4)12-17/h5-10,12-15H,1-4H3,(H3,27,28,29,30)/t15-/m0/s1
• InChIKey: OBHAYOJCPNWKBL-HNNXBMFYSA-N
• SMILES: CC(C)N1C(=CC2=C(C1=O)C(=CC=C2)C3=CN(C(=O)C=C3)C)C(C)NC4=NC=NC(=C4C#N)N

IPI-3063 is a potent and selective PI3K p110δ inhibitor with an IC50 of 2.5 ± 1.2 nM.
IPI-3063 inhibits p110α, p110β, and p110γ with IC50s of 1171±533 nM, 1508±624 nM, and 2187±1529 nM, respectively. IPI-3063 potently reduces mouse B cell proliferation, survival, and plasmablast differentiation while increasing antibody class switching to IgG1. IPI-3063 is a p110δ selective compound with an IC50=0.1 nM in p110δ-specific cell-based assays and cellular IC50 values for the other class I PI3K isoforms are at least 1,000-fold higher (IC50=1901±1318 nM for p110α, IC50=102.8±35.7 nM for p110β, IC50=418.8±117.2 nM for p110γ). IPI-3063 is very potent in reducing p-AKT (significant effect at 1 nM). IPI-3063 also reduces p-ERK1/2 with a significant effect at 10 nM. IPI-3063 is very potent, achieving a significant decrease in B cell survival when present at 10 nM[1].

Reference

[1]. Chiu H, et al. The Selective Phosphoinoside-3-Kinase p110δ Inhibitor IPI-3063 Potently Suppresses B Cell Survival, Proliferation, and Differentiation. Front Immunol. 2017 Jun 30;8:747.
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