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OATD-02 2146132-73-0

OATD-02 2146132-73-0

CAS No.: 2146132-73-0

OATD-02 is an orally bioactive, competitive, reversible, non-covalent dual (bifunctional) inhibitor of Arginase 1 and 2.
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This product is for research use only, not for human use. We do not sell to patients.

OATD-02 is an orally bioactive, competitive, reversible, non-covalent dual (bifunctional) inhibitor of Arginase 1 and 2. OATD-02 is a sustained-release inhibitor that can effectively block intracellular arginase activity, with IC50s values of 20 nM (hARG1), 39 nM (hARG2), 39 nM (mARG1), and 28 nM ( rARG1). OATD-02 abolishes tumor immunosuppression induced by both arginase enzymes. OATD-02 may be used in melanoma research.

Physicochemical Properties


Molecular Formula C12H25BN2O4
Molecular Weight 272.148903608322
Exact Mass 272.19
CAS # 2146132-73-0
PubChem CID 141723940
Appearance Typically exists as solid at room temperature
Hydrogen Bond Donor Count 4
Hydrogen Bond Acceptor Count 6
Rotatable Bond Count 6
Heavy Atom Count 19
Complexity 314
Defined Atom Stereocenter Count 3
SMILES

B(CC[C@@H]1CC[C@H]([C@](C1)(C(=O)O)N)CN(C)C)(O)O

InChi Key NZNAXQBYXLSQHO-JBLDHEPKSA-N
InChi Code

InChI=1S/C12H25BN2O4/c1-15(2)8-10-4-3-9(5-6-13(18)19)7-12(10,14)11(16)17/h9-10,18-19H,3-8,14H2,1-2H3,(H,16,17)/t9-,10-,12+/m0/s1
Chemical Name

(1R,2S,5R)-1-amino-5-(2-boronoethyl)-2-[(dimethylamino)methyl]cyclohexane-1-carboxylic 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


Targets 20 nM (hARG1), 39 nM (hARG2), 39 nM (mARG1), 28 nM (rARG1)
ln Vitro In BMDM cells, OATD-02 inhibits mouse ARG with an IC50 of 912.9 nM, human ARG2 with an IC50 of 171.6 nM in CHO-K1 cells, and human primary hepatocytes with an IC50 of 13 mM for hARG1 [1].
ln Vivo In mice, rats, and dogs, OATD-02 (10 mg/kg) has an oral bioavailability of 13%, 30%, and 61%, respectively, indicating that it has potent long-acting effects in vivo[1]. One week after the end of dosing, OATD-02 (5 mg/kg, oral) can sustain a 4-fold increase in plasma L-arginine concentration[1]. B16F10 orthotopic xenograft tumors are inhibited in growth by OATD-02 (50 mg/kg, oral, twice day)[1].
Animal Protocol Animal/Disease Models: B16F10 orthotopic xenograft tumor model[1]
Doses: Twice per day at 50 mg/kg for 15days
Route of Administration: po (oral gavage)
Experimental Results: Inhibited tumor growth (TGI 46%).
References

[1]. Arginase 1/2 Inhibitor OATD-02: From Discovery to First-in-man Setup in Cancer Immunotherapy. Mol Cancer Ther. 2023;22(7):807-817.


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 3.6744 mL 18.3722 mL 36.7444 mL
5 mM 0.7349 mL 3.6744 mL 7.3489 mL
10 mM 0.3674 mL 1.8372 mL 3.6744 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.