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L-368,899 hydrochloride

Potent, non-peptide oxytocin receptor antagonist CAS# 160312-62-9

L-368,899 hydrochloride

Catalog No. BCC7438----Order now to get a substantial discount!

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Chemical structure

L-368,899 hydrochloride

3D structure

Chemical Properties of L-368,899 hydrochloride

Cas No. 160312-62-9 SDF Download SDF
PubChem ID 90488775 Appearance Powder
Formula C26H43ClN4O5S2 M.Wt 591.23
Type of Compound N/A Storage Desiccate at -20°C
Solubility DMSO : 130 mg/mL (219.88 mM; Need ultrasonic)
Chemical Name (2S)-2-amino-N-[(2S)-7,7-dimethyl-1-[[4-(2-methylphenyl)piperazin-1-yl]sulfonylmethyl]-2-bicyclo[2.2.1]heptanyl]-4-methylsulfonylbutanamide;hydrochloride
SMILES CC1=CC=CC=C1N2CCN(CC2)S(=O)(=O)CC34CCC(C3(C)C)CC4NC(=O)C(CCS(=O)(=O)C)N.Cl
Standard InChIKey GIUFQWFJHXXXEQ-PHSYAEQHSA-N
Standard InChI InChI=1S/C26H42N4O5S2.ClH/c1-19-7-5-6-8-22(19)29-12-14-30(15-13-29)37(34,35)18-26-11-9-20(25(26,2)3)17-23(26)28-24(31)21(27)10-16-36(4,32)33;/h5-8,20-21,23H,9-18,27H2,1-4H3,(H,28,31);1H/t20?,21-,23-,26?;/m0./s1
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 L-368,899 hydrochloride

DescriptionPotent, non-peptide and orally active oxytocin receptor antagonist (IC50 = 8.9 nM) that displays > 40-fold selectivity over vasopressin V1a and V2 receptors (IC50 values are 370 and 570 nM respectively). Antagonizes oxytocin-induced uterine contractions in vitro and in vivo.

L-368,899 hydrochloride Dilution Calculator

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Preparing Stock Solutions of L-368,899 hydrochloride

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 1.6914 mL 8.4569 mL 16.9139 mL 33.8278 mL 42.2847 mL
5 mM 0.3383 mL 1.6914 mL 3.3828 mL 6.7656 mL 8.4569 mL
10 mM 0.1691 mL 0.8457 mL 1.6914 mL 3.3828 mL 4.2285 mL
50 mM 0.0338 mL 0.1691 mL 0.3383 mL 0.6766 mL 0.8457 mL
100 mM 0.0169 mL 0.0846 mL 0.1691 mL 0.3383 mL 0.4228 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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References on L-368,899 hydrochloride

Discovery and development of a new class of potent, selective, orally active oxytocin receptor antagonists.[Pubmed:16302826]

J Med Chem. 2005 Dec 1;48(24):7882-905.

We report a novel chemical class of potent oxytocin receptor antagonists showing a high degree of selectivity against the closely related vasopressin receptors (V1a, V1b, V2). An initial compound, 7, was shown to be active in an animal model of preterm labor when administered by the intravenous but not by the oral route. Stepwise SAR investigations around the different structural elements revealed one position, the arenesulfonyl moiety, to be amenable to structural changes. Consequently, this position was used to introduce a variety of substituents to improve the physicochemical properties. Some of the resulting analogues were found to be superior to 7 both in terms of potency in vitro and aqueous solubility, which translated into significantly improved efficacy in the animal model after intravenous and oral administration. The best compound, 73, potently inhibited oxytocin-induced uterine contractions in nonpregnant rats and reduced spontaneous uterine contractions in late-term pregnant rats.

Attenuation of PGF2alpha release in ewes infused with the oxytocin antagonist L-368,899.[Pubmed:14550509]

Domest Anim Endocrinol. 2003 Oct;25(3):255-62.

We have investigated the effects of systemic administration of the oxytocin antagonist (OTA) L-368,899 on luteolytic PGF(2alpha) release in ewes. In the first study, carried out in four ovariectomized ewes primed with progesterone to induce responsiveness to oxytocin, 3-h i.v. infusions of 3, 10 and 30 microg/kg/min OTA, carried out on days 12, 14, 16 and 18 in a Latin Square design, resulted in a significant attenuation of the oxytocin induced increase in PGFM concentration at all doses (OTA 139+/-8.3% of pre-oxytocin baseline; control 206.8+/-18.7%; P<0.005). In a further study, continuous infusion of cyclic ewes (n=6) with 10 microg/kg/min OTA from day 13 to day 17 of the cycle resulted in a reduction in both the frequency (OTA 1.0+/-0.4/ewe; control 2.2+/-0.2/ewe; P<0.05) and amplitude (OTA 31.8+/-11.0 pg/ml; control 68.8+/-10.4 pg/ml; P<0.05) of endogenous PGFM episodes compared to control ewes (n=5) measured during daily 8-h sampling windows on days 14-17. This reduction in PGFM concentrations was accompanied by a modest extension in the day of luteolysis (progesterone <0.5 ng/ml) to day 17.5+/-0.4 in the OTA treated group compared with day 16.4+/-0.5 in the control group (P=0.07). The results demonstrate that treatment with OTA caused a significant reduction in episodes of increased PGFM concentration during the period of luteolysis and may provide an approach by which to reduce early pregnancy failure.

1-((7,7-Dimethyl-2(S)-(2(S)-amino-4-(methylsulfonyl)butyramido)bicyclo [2.2.1]-heptan-1(S)-yl)methyl)sulfonyl)-4-(2-methylphenyl)piperaz ine (L-368,899): an orally bioavailable, non-peptide oxytocin antagonist with potential utility for managing preterm labor.[Pubmed:8126695]

J Med Chem. 1994 Mar 4;37(5):565-71.

Modifications to the previously reported spiroindenylpiperidine camphor-sulfonamide oxytocin (OT) antagonist L-366,509 have produced a new series of o-tolylpiperazine (TP) camphor-sulfonamides. A number of analogues in the TP series that incorporate a modified or unmodified L-methionine sulfone amide at the C2 endo position on the camphor ring exhibit high affinity for OT receptors (IC50 = 1.3-15 nM) and good selectivity for binding to OT versus arginine vasopressin V1a and V2 receptors. Several of these analogues were additionally characterized as potent antagonists of OT-stimulated contractions of the isolated and/or in situ rat uterus. Compound 7 (L-368,899) exhibited the best overall profile of OT receptor affinity (IC50 = 8.9 nM, rat uterus; 26 nM, human uterus), potency for inhibition of OT-stimulated contractions of the isolated rat uterus (pA2 = 8.9) and in situ rat uterus (AD50 = 0.35 mg/kg after intravenous (i.v.) administration and 7.0 mg/kg after intraduodenal administration), aqueous solubility (3.7 mg/mL at pH 5.0), and oral bioavailability in several species (35% (rat), 25% (dog), and 21% (chimpanzee) as estimated from radioreceptor determination of drug levels in plasma after oral and i.v. dosing). On the basis of these favorable properties, 7 has begun clinical testing for use as an oral and i.v. tocolytic agent. Molecular modeling alignment studies have provided support for the hypothesis that the TP camphor-sulfonamide portion of the non-peptide structures may serve as a mimetic of the important D-AA2-Ile3 dipeptide (AA = aromatic amino acid) found in many potent OT antagonists from the cyclic hexapeptide and OT analogue structural classes.

Description

L-368,899 hydrochloride is a potent, selective, orally bioavailable, non-peptide oxytocin receptor antagonist, with IC50s of 8.9 nM and 26 nM for rat uterus and human uterus oxytocin receptor, respectively, used as a tocolytic agent.

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