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SML2452

Sigma-Aldrich

LY2444296

≥98% (HPLC)

Synonym(s):

(S)-3-Fluoro-4-(4-((2-(3-fluorophenyl)pyrrolidin-1-yl)methyl)phenoxy)benzamide, 3-Fluoro-4-[4-[[(2S)-2-(3-fluorophenyl)-1-pyrrolidinyl]methyl]phenoxy]benzamide, 4-[4-[[(2S)-2-(3-Fluorophenyl)-1-pyrrolidinyl]methyl]phenoxy]-3-fluorobenzamide, FP3FBZ, LY 2444296, LY-2444296

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About This Item

Empirical Formula (Hill Notation):
C24H22F2N2O2
CAS Number:
1346133-11-6
Molecular Weight:
408.44
UNSPSC Code:
12352200
NACRES:
NA.77

Assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

DMSO: 2 mg/mL, clear

storage temp.

2-8°C

SMILES string

NC(C1=CC=C(OC2=CC=C(CN3CCC[C@H]3C4=CC=CC(F)=C4)C=C2)C(F)=C1)=O

Biochem/physiol Actions

LY2444296 is a brain-penetrant, orally active, short-acting, high-affinity, potent and selective κ (kappa) opioid receptor (KOR) antagonist (human κ/μ/δ Ki = 0.565/35.8/211 nM against diprenorphine binding; GTP-γ-S binding IC50/agonist/subtype transfectant = 1.57 nM/300 nM U69593/κ, 21.3 nM/1 μM DAMGO/μ 293 nM/30 nM DPDPE/d). LY2444296 reverses κ agonist antinociceptive efficacy in vivo (ED50 = 0.24 mg/kg p.o. against 1 mg/kg U69593 sc. by rat formalin test), decreases immobility time (10 or 30 mg/kg sc.) and prevents enhanced alcohol consumption (5 mg/kg i.p.) among mice subjected to stress by forced swimming.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Marta Valenza et al.
Psychopharmacology, 234(15), 2219-2231 (2017-05-28)
The recruitment of the stress circuitry contributes to a shift from positive to negative reinforcement mechanisms sustaining long-term cocaine addiction. The kappa opioid receptor (KOPr) signaling is upregulated by stress and chronic cocaine exposure. While KOPr agonists induce anhedonia and
Charles H Mitch et al.
Journal of medicinal chemistry, 54(23), 8000-8012 (2011-10-01)
Arylphenylpyrrolidinylmethylphenoxybenzamides were found to have high affinity and selectivity for κ opioid receptors. On the basis of receptor binding assays in Chinese hamster ovary (CHO) cells expressing cloned human opioid receptors, (S)-3-fluoro-4-(4-((2-(3-fluorophenyl)pyrrolidin-1-yl)methyl)phenoxy)benzamide (25) had a K(i) = 0.565 nM for
Brian Reed et al.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 43(4), 739-750 (2017-09-01)
The κ-opioid receptor (KOP-r) system and its endogenous ligands, the dynorphins, are involved in the neurobiological regulation of addictive states, and of mood. There are limited data on the impact of selective KOP-r antagonism in humans on basic biobehavioral functions
Rachel I Anderson et al.
Frontiers in cellular neuroscience, 10, 45-45 (2016-03-05)
Our laboratory has previously demonstrated that daily forced swim stress (FSS) prior to ethanol drinking sessions facilitates enhanced ethanol consumption in mice with a history of chronic intermittent ethanol (CIE) vapor exposure without altering ethanol intake in air-exposed controls. Because
Peng Huang et al.
Neuroscience letters, 615, 15-20 (2016-01-19)
Prototypical long-acting kappa opioid receptor (KOPR) antagonists [e.g., norbinaltorphimine (norBNI)] have been reported to exert anxiolytic-like effects in several commonly used anxiety tests in rodents including the novelty-induced hypophagia (NIH) and elevated plus maze (EPM) tests. It remains unknown if
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