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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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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
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
Peng Huang et al.
European journal of pharmacology, 781, 53-59 (2016-04-06)
Kappa opioid (KOP) receptor antagonists and delta opioid (DOP) receptor agonists have antidepressant-like effects in animal tests and may be useful for treatment-resistant depression in humans. In this study, we examined whether the combination of a KOP receptor antagonist and
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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