Umbralisib tosylate (TGR-1202) is an orally bioactive dual inhibitor of PI3Kδ and casein kinase-1-ε (CK1ε) with anticancer and immunomodulatory effects. It inhibits PI3Kδ and casein kinase-1-ε (CK1ε) with EC50 of 22.2 nM and 6.0 μM, respectively.
Physicochemical Properties
| Molecular Formula | C38H32F3N5O6S |
| Molecular Weight | 743.750798225403 |
| Exact Mass | 743.203 |
| CAS # | 1532533-72-4 |
| Related CAS # | Umbralisib;1532533-67-7;Umbralisib hydrochloride;1532533-78-0;Umbralisib sulfate;1532533-75-7 |
| PubChem CID | 86707828 |
| Appearance | Typically exists as solid at room temperature |
| Melting Point | 138 - 141 °C |
| LogP | 9.566 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 13 |
| Rotatable Bond Count | 7 |
| Heavy Atom Count | 53 |
| Complexity | 1220 |
| Defined Atom Stereocenter Count | 1 |
| SMILES | S(C1C=CC(C)=CC=1)(=O)(=O)O.FC1C=CC2=C(C=1)C(C(C1C=CC=C(C=1)F)=C([C@H](C)N1C3C(=C(N)N=CN=3)C(C3C=CC(=C(C=3)F)OC(C)C)=N1)O2)=O |
| InChi Key | KYJWUPZPSXZEPG-NTISSMGPSA-N |
| InChi Code | InChI=1S/C31H24F3N5O3.C7H8O3S/c1-15(2)41-24-9-7-18(12-22(24)34)27-26-30(35)36-14-37-31(26)39(38-27)16(3)29-25(17-5-4-6-19(32)11-17)28(40)21-13-20(33)8-10-23(21)42-29;1-6-2-4-7(5-3-6)11(8,9)10/h4-16H,1-3H3,(H2,35,36,37);2-5H,1H3,(H,8,9,10)/t16-;/m0./s1 |
| Chemical Name | 2-[(1S)-1-[4-amino-3-(3-fluoro-4-propan-2-yloxyphenyl)pyrazolo[3,4-d]pyrimidin-1-yl]ethyl]-6-fluoro-3-(3-fluorophenyl)chromen-4-one;4-methylbenzenesulfonic acid |
| 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) |
Biological Activity
| ln Vitro | Human whole blood CD19 cell proliferation is half-maximally inhibited by umbralisib tosylate between 100 and 300 nM[3]. In human lymphoma and leukemia cell lines, umbralisib tosylate (10 nM-100 μM) suppresses phosphorylated AKT at Ser473 in a concentration-dependent manner[4]. In the DLBCL cell line LY7, umbralisib tosylate (15–50 μM) potently suppresses the expression of c-Myc. Its distinct structural characteristics make it appropriate for targeting CK1ε in lymphoma cells. |
| ln Vivo | Using the MOLT-4 cell line, umbralisib tosylate (150 mg/kg, po daily) dramatically reduces the tumors by day 25 in a subcutaneous xenograft model of T-cell acute lymphoblastic leukemia (T-ALL) in NOD/SCID mice[4]. |
| Animal Protocol | Female Balb/c mice; |
| References |
[1]. The dual PI3Kδ/CK1ε inhibitor umbralisib exhibits unique immunomodulatory effects on CLL T cells. Blood Adv. 2020 Jul 14;4(13):3072-3084. [2]. Umbralisib, a novel PI3Kδ and casein kinase-1ε inhibitor, in relapsed or refractory chronic lymphocytic leukaemia and lymphoma: an open-label, phase 1, dose-escalation, first-in-human study. Lancet Oncol. 2018 Apr;19(4):486-496. [3]. Inhibition of PI3Kδ kinase by a selective, small molecule inhibitor suppresses B-cell proliferation and leukemic cell growth. [4]. Silencing c-Myc translation as a therapeutic strategy through targeting PI3Kδ and CK1ε in hematological malignancies. Blood. 2017 Jan 5;129(1):88-99. |
| Additional Infomation |
Umbralisib Tosylate is the tosylate form of umbralisib, an orally bioavailable, selective inhibitor of the delta isoform of the 110 kDa catalytic subunit of class I phosphoinositide-3 kinases (PI3K) with potential antineoplastic activity. umbralisib inhibits PI3K and prevents the activation of the PI3K/AKT kinase signaling pathway. This decreases proliferation and induces cell death in susceptible tumor cells. Unlike other isoforms of PI3K, PI3K-delta is expressed primarily in tumor cells and cells of the hematopoietic lineage. The targeted inhibition of PI3K-delta allows for PI3K signaling in normal, non-neoplastic cells. PI3K, an enzyme often overexpressed in cancer cells, plays a crucial role in tumor cell regulation and survival. See also: Umbralisib (has active moiety). Drug Indication Treatment of mature B cell malignancies |
Solubility Data
| 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 (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 | 1.3445 mL | 6.7227 mL | 13.4454 mL | |
| 5 mM | 0.2689 mL | 1.3445 mL | 2.6891 mL | |
| 10 mM | 0.1345 mL | 0.6723 mL | 1.3445 mL |