SHR1653 is a potent, selective, brain-penetrating oxytocin receptor (OTR) antagonist (inhibitor) with IC50 of 15 nM for hOTR.

Physicochemical Properties

Molecular Formula	C21H21CLFN5O2
Molecular Weight	429.88
Exact Mass	429.136
CAS #	2231770-73-1
Related CAS #	2231770-73-1;
PubChem CID	135192983
Appearance	Light yellow to yellow solid powder
LogP	3.1
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	7
Rotatable Bond Count	6
Heavy Atom Count	30
Complexity	620
Defined Atom Stereocenter Count	2
SMILES	C1(=C(C=C(C=C1)F)Cl)[C@@]12CN(C3=NN=C(COC)N3C3C=CC(OC)=NC=3)C[C@@H]1C2
InChi Key	UYKVJQCPBDDIFD-ZSEKCTLFSA-N
InChi Code	InChI=1S/C21H21ClFN5O2/c1-29-11-18-25-26-20(28(18)15-4-6-19(30-2)24-9-15)27-10-13-8-21(13,12-27)16-5-3-14(23)7-17(16)22/h3-7,9,13H,8,10-12H2,1-2H3/t13-,21-/m0/s1
Chemical Name	(1S,5R)-1-(2-chloro-4-fluorophenyl)-3-[5-(methoxymethyl)-4-(6-methoxypyridin-3-yl)-1,2,4-triazol-3-yl]-3-azabicyclo[3.1.0]hexane
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 Note: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture and light.
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

References

[1]. Discovery of SHR1653, a Highly Potent and Selective OTR Antagonist with Improved Blood-Brain Barrier Penetration. ACS Med Chem Lett. 2019 May 29;10(6):996-1001.

Solubility Data

Solubility (In Vitro)

DMSO : ~100 mg/mL (~232.62 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.5 mg/mL (5.82 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% 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 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (5.82 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 3: ≥ 2.5 mg/mL (5.82 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	2.3262 mL	11.6312 mL	23.2623 mL
	5 mM	0.4652 mL	2.3262 mL	4.6525 mL
	10 mM	0.2326 mL	1.1631 mL	2.3262 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.