CH5132799

Class I PI3K inhibitor CAS# 1007207-67-1

CH5132799

Catalog No. BCC4991----Order now to get a substantial discount!

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Chemical structure

CH5132799

3D structure

Chemical Properties of CH5132799

Cas No. 1007207-67-1 SDF Download SDF
PubChem ID 49784945 Appearance Powder
Formula C15H19N7O3S M.Wt 377.42
Type of Compound N/A Storage Desiccate at -20°C
Solubility DMSO : 4.55 mg/mL (12.06 mM; Need ultrasonic)
H2O : < 0.1 mg/mL (insoluble)
Chemical Name 5-(7-methylsulfonyl-2-morpholin-4-yl-5,6-dihydropyrrolo[2,3-d]pyrimidin-4-yl)pyrimidin-2-amine
SMILES CS(=O)(=O)N1CCC2=C(N=C(N=C21)N3CCOCC3)C4=CN=C(N=C4)N
Standard InChIKey JEGHXKRHKHPBJD-UHFFFAOYSA-N
Standard InChI InChI=1S/C15H19N7O3S/c1-26(23,24)22-3-2-11-12(10-8-17-14(16)18-9-10)19-15(20-13(11)22)21-4-6-25-7-5-21/h8-9H,2-7H2,1H3,(H2,16,17,18)
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of CH5132799

DescriptionCH5132799 is an inhibitor of class I PI3Ks.
TargetsPI3KαPI3KγPI3KβPI3KδmTOR  
IC5014 nM36 nM0.12 μM0.50 μM1.6 μM  

Protocol

Cell Assay [1]
The cell lines are added to the wells of 96-well plates containing 0.076 to 10,000 nM CH5132799 and incubated at 37°C. After 4 days of incubation, Cell Counting Kit-8 solution is added and, after incubation for several more hours, absorbance at 450 nm is measured with Microplate-Reader iMark. The antiproliferative activity is calculated. The IC50 values are calculated[1].

Animal Administration [1]
Mice[1] Female BALB-nu/nu mice (CAnN.Cg-Foxn1/CrlCrlj nu/nu) are used. A total of 4×106 to 1.2×107 cells are suspended in 100 to 200 μL serum-free culture medium and injected subcutaneously into the right flank of the mice. Tumor size is measured by using a gauge twice per week, and tumor volume (TV) is calculated. Once the tumors reach a volume of approximately 200 to 300 mm3, animals are randomized into groups (n=4 or 5 in each group) and treatment is initiated. CH5132799 and Everolimus are orally administered once a day and Trastuzumab is intravenously injected once a week.

References:
[1]. Tanaka H, et al. The selective class I PI3K inhibitor CH5132799 targets human cancers harboring oncogenic PIK3CA mutations. Clin Cancer Res, 2011, 17(10), 3272-3281. [2]. Ohwada J, et al. Discovery and biological activity of a novel class I PI3K inhibitor, CH5132799. Bioorg Med Chem Leff, 2011, 21(6), 1767-1772.

CH5132799 Dilution Calculator

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CH5132799 Molarity Calculator

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Preparing Stock Solutions of CH5132799

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.6496 mL 13.2478 mL 26.4957 mL 52.9914 mL 66.2392 mL
5 mM 0.5299 mL 2.6496 mL 5.2991 mL 10.5983 mL 13.2478 mL
10 mM 0.265 mL 1.3248 mL 2.6496 mL 5.2991 mL 6.6239 mL
50 mM 0.053 mL 0.265 mL 0.5299 mL 1.0598 mL 1.3248 mL
100 mM 0.0265 mL 0.1325 mL 0.265 mL 0.5299 mL 0.6624 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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Background on CH5132799

CH5132799 is an inhibitor of class I phosphatidylinositol 3-kinase (PI3K) with IC50 value of 14nM against PI3Kα [1].

CH5132799 shows inhibitory effect on class I PI3K with IC50 values of 0.014μM, 0.12μM, 0.5μM and 0.036μM against PI3Kα, PI3Kβ, PI3Kδ and PI3Kγ, respectively. PI3Kα is especially sensitive to CH5132799. CH5132799 is a selective inhibitor. It shows less effect on class II PI3Ks, class III PI3K and mTOR. For other 26 protein kinases, CH5132799 nearly has no inhibition with IC50 value of > 10μM. CH5132799 is found to have potent antitumor activity. It exerts IC50 values of 0.2μM, 0.032μM, 0.056μM and 0.12μM in HCT116, KPL-4, T-47D and SK-OV-3 cell lines, respectively. Moreover, CH5132799 is oral available in animal models. Treatment of CH5132799 shows strong tumor regression at dose of 12.5 mg/kg in mice bearing human breast cancer xenografts [1].

References:
[1] Ohwada J, Ebiike H, Kawada H, et al. Discovery and biological activity of a novel class I PI3K inhibitor, CH5132799. Bioorganic & medicinal chemistry letters, 2011, 21(6): 1767-1772.

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References on CH5132799

First-in-human study of CH5132799, an oral class I PI3K inhibitor, studying toxicity, pharmacokinetics, and pharmacodynamics, in patients with metastatic cancer.[Pubmed:25231405]

Clin Cancer Res. 2014 Dec 1;20(23):5908-17.

PURPOSE: This phase I dose-escalation study investigated the maximum-tolerated dose (MTD), dose-limiting toxicities (DLT), safety, pharmacokinetics (PK), pharmacodynamics (PD), and preliminary clinical activity of CH5132799. EXPERIMENTAL DESIGN: Patients with metastatic solid tumors were eligible for the study. CH5132799 was administered orally once daily or twice daily in 28-day cycles. RESULTS: Thirty-eight patients with solid tumors received CH5132799 at 2 to 96 mg once daily or 48 to 72 mg twice daily. The MTD was 48 mg on the twice-daily schedule but was not reached on the once daily schedule. DLTs were grade 3 elevated liver function tests (LFT), grade 3 fatigue, grade 3 encephalopathy, grade 3 diarrhea, and grade 3 diarrhea with grade 3 stomatitis; all DLTs were reversible. Most drug-related adverse events were grade 1/2. Diarrhea (34%) and nausea (32%) were the most common events. Mean Cmax and AUC0-24 in steady state at MTD were 175 ng/mL and 1,550 ng.h/mL, respectively, consistent with efficacious exposure based on preclinical modeling. Reduction in SUVmax with [(18)F] fluorodeoxyglucose positron emission tomography (FDG-PET) was observed in 5 of 7 patients at MTD. A patient with PIK3CA-mutated clear cell carcinoma of the ovary achieved a partial response by GCIG CA125 criteria and further, a heavily pretreated patient with triple-negative breast cancer had marked improvement in her cutaneous skin lesions lasting six cycles. CONCLUSION: CH5132799 is well tolerated at the MTD dose of 48 mg twice daily. At this dose, the drug had a favorable PK and PD profile and preliminary evidence of clinical activity.

Discovery and biological activity of a novel class I PI3K inhibitor, CH5132799.[Pubmed:21316229]

Bioorg Med Chem Lett. 2011 Mar 15;21(6):1767-72.

Phosphatidylinositol 3-kinase (PI3K) is a lipid kinase and a promising therapeutic target for cancer. Using structure-based drug design (SBDD), we have identified novel PI3K inhibitors with a dihydropyrrolopyrimidine skeleton. Metabolic stability of the first lead series was drastically improved by replacing phenol with aminopyrimidine moiety. CH5132799, a novel class I PI3K inhibitor, exhibited a strong inhibitory activity especially against PI3Kalpha (IC(50)=0.014 muM). In human tumor cell lines with PI3K pathway activation, CH5132799 showed potent antiproliferative activity. CH5132799 is orally available and showed significant antitumor activity in PI3K pathway-activated human cancer xenograft models in mice.

The selective class I PI3K inhibitor CH5132799 targets human cancers harboring oncogenic PIK3CA mutations.[Pubmed:21558396]

Clin Cancer Res. 2011 May 15;17(10):3272-81.

PURPOSE: The phosphatidylinositol 3-kinase (PI3K) pathway plays a central role in cell proliferation and survival in human cancer. PIK3CA mutations, which are found in many cancer patients, activate the PI3K pathway, resulting in cancer development and progression. We previously identified CH5132799 as a novel PI3K inhibitor. Thus, this study aimed to clarify the biochemical and antitumor activity of CH5132799 and elucidate the correlation between CH5132799 response and genetic alterations in the PI3K pathway. EXPERIMENTAL DESIGN: Kinase inhibitory activity was profiled in cell-free assays. A large panel of human breast, ovarian, prostate, and endometrial cancer cell lines, as well as xenograft models, were used to evaluate the antitumor activity of CH5132799, followed by analysis for genetic alterations. Effects on Akt phosphorylation induced by mTORC1 inhibition were tested with CH5132799 and compared with mTORC1 and PI3K/mTOR inhibitors. RESULTS: CH5132799 selectively inhibited class I PI3Ks and PI3Kalpha mutants in in vitro kinase assays. Tumors harboring PIK3CA mutations were significantly sensitive to CH5132799 in vitro and were remarkably regressed by CH5132799 in in vivo mouse xenograft models. In combination with trastuzumab, tumors disappeared in the trastuzumab-insensitive breast cancer model with the PIK3CA mutation. Moreover, CH5132799 did not reverse a negative feedback loop of PI3K/Akt/mTOR signaling and induced regression against tumors regrown after long-term mTORC1 inhibitor treatment. CONCLUSIONS: CH5132799 is a selective class I PI3K inhibitor with potent antitumor activity against tumors harboring the PIK3CA mutations. Prediction of CH5132799 response on the basis of PIK3CA mutations could enable patient stratification in clinical settings.

Description

CH5132799 is a selective class I PI3K inhibitor. CH5132799 inhibits class I PI3Ks, particularly PI3Kα, with an IC50 of 14 nM.

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