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Purity: ≥98%
LY-3475070 (LY3475070; LY 3475070) is a novel, potent, oral and selective CD73 inhibitor (cluster of differentiation 73, IC50 = 28 nM) with potential anticancer activity.
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| ln Vitro |
With an EC50 of 0.213 μM, CD73-IN-3 suppresses CD73 activity in human serum. At 0.52 μM, 1.56 μM, and 4.68 μM, respectively, CD73-IN-3 suppresses CD73 activity in human serum by 56.8%, 71.7%, and 76.9% [1]. The IC50 of CD73-IN-3 for CD73 is 0.0073 μM, according to the detection results of CD73 in Calu6 human cells [1].
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| ln Vivo |
CD73 Inhibitor LY3475070 is an orally bioavailable inhibitor of the ectoenzyme CD73 (cluster of differentiation 73; 5'-ecto-nucleotidase; 5'-NT; ecto-5'-nucleotidase), with potential immunomodulating and antineoplastic activities. Upon oral administration, CD73 inhibitor LY3475070 targets and binds to CD73, leading to clustering of and internalization of CD73. This prevents CD73-mediated conversion of adenosine monophosphate (AMP) to adenosine and decreases the amount of free adenosine in the tumor microenvironment (TME). This prevents adenosine-mediated lymphocyte suppression and increases the activity of CD8-positive effector cells and natural killer (NK) cells. This also activates macrophages and reduces the activity of myeloid-derived suppressor cells (MDSCs) and regulatory T-lymphocytes (Tregs). By abrogating the inhibitory effect on the immune system and enhancing the cytotoxic T-cell-mediated immune response against tumor cells, tumor cell growth decreases. In addition, clustering and internalization of CD73 decreases the migration of cancer cells and prevents metastasis. CD73, a plasma membrane protein belonging to the 5'-nucleotidase (NTase) family, catalyzes the conversion of extracellular nucleotides, such as AMP, to membrane-permeable nucleosides, such as adenosine. It is upregulated in a number of cancer cell types and plays a key role in adenosine-mediated immunosuppression within the TME.
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| Additional Infomation |
CD73 Inhibitor LY3475070 is an orally bioavailable inhibitor of the ectoenzyme CD73 (cluster of differentiation 73; 5'-ecto-nucleotidase; 5'-NT; ecto-5'-nucleotidase), with potential immunomodulating and antineoplastic activities. Upon oral administration, CD73 inhibitor LY3475070 targets and binds to CD73, leading to clustering of and internalization of CD73. This prevents CD73-mediated conversion of adenosine monophosphate (AMP) to adenosine and decreases the amount of free adenosine in the tumor microenvironment (TME). This prevents adenosine-mediated lymphocyte suppression and increases the activity of CD8-positive effector cells and natural killer (NK) cells. This also activates macrophages and reduces the activity of myeloid-derived suppressor cells (MDSCs) and regulatory T-lymphocytes (Tregs). By abrogating the inhibitory effect on the immune system and enhancing the cytotoxic T-cell-mediated immune response against tumor cells, tumor cell growth decreases. In addition, clustering and internalization of CD73 decreases the migration of cancer cells and prevents metastasis. CD73, a plasma membrane protein belonging to the 5'-nucleotidase (NTase) family, catalyzes the conversion of extracellular nucleotides, such as AMP, to membrane-permeable nucleosides, such as adenosine. It is upregulated in a number of cancer cell types and plays a key role in adenosine-mediated immunosuppression within the TME.
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| Molecular Formula |
C15H18N4O2
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|---|---|
| Molecular Weight |
286.3290
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| Exact Mass |
286.142
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| Elemental Analysis |
C, 62.92; H, 6.34; N, 19.57; O, 11.18
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| CAS # |
2375815-63-5
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| PubChem CID |
152262911
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| Appearance |
White to off-white solid
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| LogP |
1
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| Hydrogen Bond Donor Count |
2
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| Hydrogen Bond Acceptor Count |
4
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| Rotatable Bond Count |
3
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| Heavy Atom Count |
21
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| Complexity |
488
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| Defined Atom Stereocenter Count |
2
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| SMILES |
CC1=NN=C(C=C1[C@H]2C[C@@H]2C(C)C)C3=CNC(=O)NC3=O
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| InChi Key |
WHRUIISQCORGKK-KOLCDFICSA-N
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| InChi Code |
InChI=1S/C15H18N4O2/c1-7(2)9-4-11(9)10-5-13(19-18-8(10)3)12-6-16-15(21)17-14(12)20/h5-7,9,11H,4H2,1-3H3,(H2,16,17,20,21)/t9-,11+/m1/s1
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| Chemical Name |
5-(5-((1S,2R)-2-isopropylcyclopropyl)-6-methylpyridazin-3-yl)pyrimidine-2,4(1H,3H)-dione
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| Synonyms |
LY 3475070; LY-3475070; 2375815-63-5; LY-3475070; CD73-IN-3; ly3475070; 5-(5-((1S,2R)-2-Isopropylcyclopropyl)-6-methylpyridazin-3-yl)pyrimidine-2,4(1H,3H)-dione; CHEMBL4792487; 5-[6-Methyl-5-[(1S,2R)-2-propan-2-ylcyclopropyl]pyridazin-3-yl]-1H-pyrimidine-2,4-dione; AKA9175T4N; LY3475070
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| HS Tariff Code |
2934.99.9001
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| 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)
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| Solubility (In Vitro) |
DMSO : ~100 mg/mL (~349.25 mM)
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| Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.5 mg/mL (8.73 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. 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. Solubility in Formulation 2: ≥ 2.5 mg/mL (8.73 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly. (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 3.4925 mL | 17.4624 mL | 34.9247 mL | |
| 5 mM | 0.6985 mL | 3.4925 mL | 6.9849 mL | |
| 10 mM | 0.3492 mL | 1.7462 mL | 3.4925 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.
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.
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