AZD9496, CAS No. 1639042-08-2, is a potent and orally bioavailable selective estrogen receptor downregulator and antagonist. AZD9496 can induce ERα degradation in breast cancer cell lines at picomolar concentrations. AZD9496 is curently under clinical trials. AZD9496 may be useful for the treatment of ER+ breast cancer.

Product information

CAS Number: 1639042-08-2

Molecular Weight: 442.47

Formula: C25H25F3N2O2

Synonym:

AZD9496

AZD 9496

AZD-9496

Chemical Name: (E)-3-(3,5-difluoro-4-((1R,3R)-2-(2-fluoro-2-methylpropyl)-3-methyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indol-1-yl)phenyl)acrylic acid

Smiles: C[C@@H]1CC2=C(NC3=CC=CC=C32)[C@@H](C2C(F)=CC(=CC=2F)/C=C/C(O)=O)N1CC(C)(C)F

InChiKey: DFBDRVGWBHBJNR-BBNFHIFMSA-N

InChi: InChI=1S/C25H25F3N2O2/c1-14-10-17-16-6-4-5-7-20(16)29-23(17)24(30(14)13-25(2,3)28)22-18(26)11-15(12-19(22)27)8-9-21(31)32/h4-9,11-12,14,24,29H,10,13H2,1-3H3,(H,31,32)/b9-8+/t14-,24-/m1/s1

Technical Data

Appearance: Solid Power.

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

Solubility: Soluble in DMSO, not in water

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined.

HS Tariff Code: 382200

How to use

In Vitro:

The potency of AZD9496 with IC50 of 0.82 nM, 0.14 nM, and 0.28 nM in ERα binding, downregulation, and antagonism, respectively. AZD9496 significantly inhibits MCF-7 cell growth with EC50 of 0.04 nM. Selectivity of AZD9496 over other tested nuclear hormone receptors is high: androgen receptor (AR), IC50=30 μM; glucocorticoid receptor (GR), IC50=9.2 μM; progesterone receptor (PR), IC50=0.54 μM.

In Vivo:

Significant tumor growth inhibition is observed as low as 0.5 mg/kg dose in the estrogen-dependent MCF-7 xenograft model, where this effect is accompanied by a dose-dependent decrease in PR protein levels, demonstrating potent antagonist activity. Combining AZD9496 with PI3K pathway and CDK4/6 inhibitors lead to further growth-inhibitory effects compared with monotherapy alone. AZD9496, given once daily orally at 5 and 25 mg/kg produced statistically significant increases in uterine weight compared with the ICI 182780 control (P<0.001) but significantly lower than ICI 47699 (P=0.001). AZD9496 is also tested in a long-term estrogen deprived model (LTED), using the HCC-1428 LTED cell line that grows in the absence of estrogen and is thought to best represent a model of aromatase inhibition. AZD9496 shows significant activity, with a dose of 5 mg/kg giving tumor regressions in this model.

References:

1. Weir HM, et al. AZD9496: An Oral Estrogen Receptor Inhibitor That Blocks the Growth of ER-Positive and ESR1-Mutant Breast Tumors in Preclinical Models. Cancer Res. 2016 Jun 1;76(11):3307-18.

Products are for research use only. Not for human use.