BX-320

• CAT Number: I023889
• CAS Number: 702676-93-5
• Molecular Formula: C23H31BrN8O3
• Molecular Weight: 547.45
• Purity: ≥95%
• Synonyms: N’-[3-[[5-bromo-2-[3-(pyrrolidine-1-carbonylamino)anilino]pyrimidin-4-yl]amino]propyl]-2,2-dimethylpropanediamide
• InChI: InChI=1S/C23H31BrN8O3/c1-23(2,19(25)33)20(34)27-10-6-9-26-18-17(24)14-28-21(31-18)29-15-7-5-8-16(13-15)30-22(35)32-11-3-4-12-32/h5,7-8,13-14H,3-4,6,9-12H2,1-2H3,(H2,25,33)(H,27,34)(H,30,35)(H2,26,28,29,31)
• InChIKey: ZNSULAZTNWFKEW-UHFFFAOYSA-N
• SMILES: CC(C)(C(=O)N)C(=O)NCCCNC1=NC(=NC=C1Br)NC2=CC(=CC=C2)NC(=O)N3CCCC3

BX-320 is a selective, ATP-competitive, orally acitive, and direct PDK1 inhibitor with an IC50 of 30 nM in a direct kinase assay format. BX-320 also induces apoptosis. Anticancer effect[1].
BX-320 binds to the ATP binding site of PDK1. BX-320 also inhibits Chck1, c-Kit, KDR, PKA, CDK2b/cyclin E, GSK3β, PKC with IC50s of 0.82, 0.89, 1.4, 1.4, 1.5, 4.0, and 5.7 μM, respectively[1].
BX-320 blocks PDK1/Akt signaling in tumor cells and inhibits the anchorage-dependent growth of a variety of tumor cell lines in culture or induces apoptosis[1].
BX-320 inhibits the growth of MDA-468 breast cancer cells (IC50=0.6 μM) and induces apoptosis. BX-320 promotes a 12-fold induction of caspase-3/7 activity after 48 h of treatment (IC50=0.5 μm), indicating a strong proapoptotic response[1].
BX-320 (0.3-10 μM; for 18 hours) greatly reduces the amount of both p-Thr308-Akt and p-Thr386-S6K1[1].
BX-320 (oral dosing with 200 mg/kg, twice a day for 21 days) shows efficacy in a blood-borne metastasis model. BX-320 inhibits the growth of LOX melanoma tumors in the lungs of nude mice after injection of tumor cells into the tail vein. BX-320 has efficacy in an in vivo tumor model, which may reflect an inhibition of productive implantation of tumor cells in the lung or an inhibition of subsequent tumor growth[1].

Reference

[1]. Richard I Feldman, et al. Novel small molecule inhibitors of 3-phosphoinositide-dependent kinase-1. J Biol Chem. 2005 May 20;280(20):19867-74.
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