| Size | Price | |
|---|---|---|
| 500mg | ||
| 1g | ||
| Other Sizes |
| Targets |
EGFR
|
|---|---|
| ln Vitro |
BIBW2992 is more efficient at preventing lung cancer cell lines carrying wild-type (H1666) or L858R/T790M (NCI-H1975) EGFR from surviving than erlotinib, gefitinib, or lapatinib. Comparably effective against NSCLC lines expressing EGFR E746_A750del (HCC827) or HER2 776insV (NCI-H1781), BIBW2992 exhibits no activity against A549 cells, which express EGFR and HER2 in their wild-type forms.[1] Afatinib increases the apoptosis that topotecan and mitoxantrone induce in SP cells as well as the cytotoxicity of these substances to SP cells.
|
| ln Vivo |
Genetic alterations in the kinase domain of the epidermal growth factor receptor (EGFR) in non-small cell lung cancer (NSCLC) patients are associated with sensitivity to treatment with small molecule tyrosine kinase inhibitors. Although first-generation reversible, ATP-competitive inhibitors showed encouraging clinical responses in lung adenocarcinoma tumors harboring such EGFR mutations, almost all patients developed resistance to these inhibitors over time. Such resistance to first-generation EGFR inhibitors was frequently linked to an acquired T790M point mutation in the kinase domain of EGFR, or upregulation of signaling pathways downstream of HER3. Overcoming these mechanisms of resistance, as well as primary resistance to reversible EGFR inhibitors driven by a subset of EGFR mutations, will be necessary for development of an effective targeted therapy regimen. Here, we show that BIBW2992, an anilino-quinazoline designed to irreversibly bind EGFR and HER2, potently suppresses the kinase activity of wild-type and activated EGFR and HER2 mutants, including erlotinib-resistant isoforms. Consistent with this activity, BIBW2992 suppresses transformation in isogenic cell-based assays, inhibits survival of cancer cell lines and induces tumor regression in xenograft and transgenic lung cancer models, with superior activity over erlotinib. These findings encourage further testing of BIBW2992 in lung cancer patients harboring EGFR or HER2 oncogenes.[1]
|
| Animal Protocol |
Four bitransgenic mice on continuous doxycycline diets for more than 6 weeks were subjected to MRI (Figure 4) to document the lung tumor burden. Afatinib (BIBW2992) formulated in 0.5% methocellulose-0.4% polysorbate-80 (Tween 80) was administered orally by gavage at 20 mg/kg once daily dosing schedule. Rapamycin was dissolved in 100% ethanol, freshly diluted in 5% PEG400 and 5% Tween 80 before treatment and administered by intraperitoneal injection at 2 mg/kg daily dosage. Mice were monitored by MRI every 1 or 2 weeks to determine reduction in tumor volume and killed for further histological and biochemical studies after drug treatment. For immunohistochemistry staining, three tumor-bearing mice in each group were treated three times with either Afatinib (BIBW2992) (20 mg/kg) alone or Afatinib (BIBW2992) (20 mg/kg) and rapamycin 2 mg/kg at 24 h intervals and killed 1 h after the last drug delivery. All the mice were kept on the doxycycline diet throughout the experiments. Littermates were used as controls.
|
| References |
| Molecular Formula |
C24H25CLFN5O3
|
|---|---|
| Exact Mass |
717.184
|
| Elemental Analysis |
C, 53.52; H, 4.63; Cl, 4.94; F, 2.65; N, 9.75; O, 24.51
|
| CAS # |
439081-17-1
|
| Related CAS # |
Afatinib;850140-72-6
|
| PubChem CID |
10163178
|
| Appearance |
Typically exists as solid at room temperature
|
| LogP |
3.6
|
| Hydrogen Bond Donor Count |
2
|
| Hydrogen Bond Acceptor Count |
8
|
| Rotatable Bond Count |
8
|
| Heavy Atom Count |
34
|
| Complexity |
702
|
| Defined Atom Stereocenter Count |
1
|
| SMILES |
CN(C)C/C=C/C(=O)NC1=C(C=C2C(=C1)C(=NC=N2)NC3=CC(=C(C=C3)F)Cl)O[C@@H]4CCOC4
|
| InChi Key |
ULXXDDBFHOBEHA-QDLOVBKTSA-N
|
| InChi Code |
InChI=1S/C24H25ClFN5O3/c1-31(2)8-3-4-23(32)30-21-11-17-20(12-22(21)34-16-7-9-33-13-16)27-14-28-24(17)29-15-5-6-19(26)18(25)10-15/h3-6,10-12,14,16H,7-9,13H2,1-2H3,(H,30,32)(H,27,28,29)/b4-3+/t16-/m1/s1
|
| Chemical Name |
(E)-N-[4-(3-chloro-4-fluoroanilino)-7-[(3R)-oxolan-3-yl]oxyquinazolin-6-yl]-4-(dimethylamino)but-2-enamide
|
| Synonyms |
Afatinib Impurity C; 945553-91-3; (R)-Afatinib; (E)-N-[4-(3-chloro-4-fluoroanilino)-7-[(3R)-oxolan-3-yl]oxyquinazolin-6-yl]-4-(dimethylamino)but-2-enamide; 439081-17-1; (R,E)-N-(4-((3-Chloro-4-fluorophenyl)amino)-7-((tetrahydrofuran-3-yl)oxy)quinazolin-6-yl)-4-(dimethylamino)but-2-enamide; CHEMBL2347958; (2E)-N-[4-[(3-Chloro-4-fluorophenyl)amino]-7-[[(3R)-tetrahydro-3-furanyl]oxy]-6-quinazolinyl]-4-(dimethylamino)-2-butenamide;
|
| 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 |
| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
|
| Solubility (In Vitro) |
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
|
|---|---|
| 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
Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline)(e.g. IP/IV/IM/SC) *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). View More
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)] 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). View More
Oral Formulation 3: Dissolved in PEG400 (Please use freshly prepared in vivo formulations for optimal results.) |
Calculation results
Working concentration： mg/mL；
Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O，mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
Products are for research use only; We do not sell to patients
Copyright 2020 InvivoChem LLC | All Rights Reserved
