AZD3229 Tosylate, the tosylate salt of AZD-3229, is a novel, potent, pan-KIT mutant inhibitor with antitumor activity. It has the potential to treat gastrointestinal stromal tumors and exhibits low nanomolar growth inhibition against a variety of mutant KIT-driven Ba/F3 cell lines (GI50=1–50 nM), with a good margin to KDR-driven effects. Moreover, it suppresses Tel-PDGFRα, Tel-PDGFRβ, and V561D/D842V PDGFR mutants. Additionally, it exhibits strong pharmacodynamic inhibition of the target, good cross-species pharmacokinetics, and activity in multiple in vivo models of GIST. Its kinome selectivity is comparable to that of the best-performing authorized GIST agents, and its selectivity over KDR can be primarily explained by the interaction of water molecules with the protein and ligand in the active site.

Physicochemical Properties

Molecular Formula	C31H34FN7O6S
Molecular Weight	651.708368778229
Exact Mass	651.23
Elemental Analysis	C, 57.13; H, 5.26; F, 2.92; N, 15.04; O, 14.73; S, 4.92
CAS #	2248003-71-4
Related CAS #	AZD3229;2248003-60-1
PubChem CID	135367697
Appearance	Light yellow to yellow solid powder
Hydrogen Bond Donor Count	3
Hydrogen Bond Acceptor Count	12
Rotatable Bond Count	11
Heavy Atom Count	46
Complexity	873
Defined Atom Stereocenter Count	0
InChi Key	AWHHAHZPRULJMA-UHFFFAOYSA-N
InChi Code	InChI=1S/C24H26FN7O3.C7H8O3S/c1-15(2)21-12-32(31-30-21)13-22(33)28-16-4-6-17(7-5-16)29-24-23-19(25)10-18(35-9-8-34-3)11-20(23)26-14-27-24;1-6-2-4-7(5-3-6)11(8,9)10/h4-7,10-12,14-15H,8-9,13H2,1-3H3,(H,28,33)(H,26,27,29);2-5H,1H3,(H,8,9,10)
Chemical Name	N-[4-[[5-fluoro-7-(2-methoxyethoxy)quinazolin-4-yl]amino]phenyl]-2-(4-propan-2-yltriazol-1-yl)acetamide;4-methylbenzenesulfonic acid
Synonyms	AZD3229 tosylate; AZD 3229; AZD-3229; AZD-3229 Tosylate; AZD 3229 Tosylate
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: Please store this product in a sealed and protected environment, avoid exposure to moisture.
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

Targets	KIT
ln Vitro	AZD3229 is a potent, pan-KIT mutant inhibitor that exhibits strong single-digit nM growth inhibition against a range of Ba/F3 cell lines driven by mutant KIT (GI50=1–50 nM). Across a wide range of cell types, AZD3229 exhibits strong single-digit nM growth inhibition with a good margin against KDR-driven effects. Its kinome selectivity is comparable to the best of the approved GIST agents, and its selectivity over KDR can be primarily explained by the interaction of water molecules with the protein and ligand in the active site[1].
References	[1]. Discovery of N-(4-{[5-Fluoro-7-(2-methoxyethoxy)quinazolin-4-yl]amino}phenyl)-2-[4-(propan-2-yl)-1 H-1,2,3-triazol-1-yl]acetamide (AZD3229), a Potent Pan-KIT Mutant Inhibitor for the Treatment of Gastrointestinal Stromal Tumors. J Med Chem. 2018 Oct 11;61(19):8797-8810.
Additional Infomation	PDGFR alpha/KIT Mutant-specific Inhibitor NB003 is the tosylate salt form of NB003, an orally bioavailable inhibitor of specific mutated forms of platelet-derived growth factor receptor alpha (PDGFR alpha; PDGFRa) and mast/stem cell factor receptor c-Kit (SCFR; CD117), with potential antineoplastic activity. Upon oral administration, PDGFR alpha/KIT mutant-specific inhibitor NB003 specifically targets, binds to and inhibits specific mutant forms of PDGFRa and c-Kit. This results in the inhibition of PDGFRa- and c-Kit-mediated signal transduction pathways and the inhibition of proliferation in tumor cells that express these PDGFRa and c-Kit mutants. PDGFRa and c-Kit, protein tyrosine kinases, are upregulated or mutated in various tumor cell types; they play key roles in the regulation of cellular proliferation and resistance to chemotherapy.

Solubility Data

Solubility (In Vitro)

DMSO: ≥ 100 mg/mL (~153.4 mM)

Solubility (In Vivo)

Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples. Injection Formulations (e.g. IP/IV/IM/SC) Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] *Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin → 500 μL Saline) Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO → 100 μLPEG300 → 200 μL castor oil → 650 μL Saline) Injection Formulation 7: Ethanol : Cremophor : Saline = 10： 10 : 80 (i.e. 100 μL Ethanol → 100 μL Cremophor → 800 μL Saline) Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH → 900 μL Corn oil) Injection Formulation 10: EtOH : PEG300：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Oral Formulations Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). Oral Formulation 3: Dissolved in PEG400 Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose Oral Formulation 6: Mixing with food powders Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	1.5344 mL	7.6721 mL	15.3442 mL
	5 mM	0.3069 mL	1.5344 mL	3.0688 mL
	10 mM	0.1534 mL	0.7672 mL	1.5344 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.