CAS 324523-20-8|NPS-2143 hydrochloride

Introduction：Basic information about CAS 324523-20-8|NPS-2143 hydrochloride, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

Table of Contents

1. Names
2. NPS-2143 hydrochloride BiologicalActivity
3. Chemical & Physical Properties
4. Safety Information
5. Articles2
6. Synonyms

Common Name	NPS-2143 hydrochloride
CAS Number	324523-20-8	Molecular Weight	445.381
Density	/	Boiling Point	/
Molecular Formula	C₂₄H₂₆Cl₂N₂O₂	Melting Point	/
MSDS	ChineseUSA	Flash Point	/
Symbol	GHS07, GHS09	Signal Word	Warning

Names

Name	NPS-2143 hydrochloride
Synonym	More Synonyms

NPS-2143 hydrochloride BiologicalActivity

Description	NPS-2143(SB 262470A ) is a selective potent calcium ion-sensing receptor antagonist with IC50 of 43 and 41 nM for cytoplasmic Ca2+ concentrations and parathyroid hormone secretion, respectively.IC50 value: 43 nM(for Ca2+ receptor) [1]Target: CaSRin vitro: NPS 2143, even when tested at much higher concentrations (3 microM), did not affect the activity of a number of other G protein-coupled receptors, including those most structurally homologous to the Ca2+ receptor. NPS 2143 stimulated parathyroid hormone (PTH) secretion from bovine parathyroid cells (EC50 of 41 nM) over a range of extracellular Ca2+ concentrations and reversed the effects of the calcimimetic compound NPS R-467 on [Ca2+]i and on secretion of PTH [1]. The first reported calcilytic compound was NPS 2143, an orally active molecule which elicits rapid, 3- to 4-fold increases in circulating levels of PTH [2].in vivo: When infused intravenously in normal rats, NPS 2143 caused a rapid and large increase in plasma levels of PTH. Ca2+ receptor antagonists are termed calcilytics and NPS 2143 is the first substance (either atomic or molecular) shown to possess such activity [1]. When administered together with an antiresorptive agent (estradiol), NPS 2143 causes an increase in trabecular bone volume and bone mineral density in osteopenic rats [2].
Related Catalog	Signaling Pathways >>GPCR/G Protein >>CaSRResearch Areas >>Metabolic Disease
References	[1]. Huang Y, Breitwieser GE. Rescue of calcium-sensing receptor mutants by allosteric modulators reveals a conformational checkpoint in receptor biogenesis. J Biol Chem. 2007 Mar 30;282(13):9517-25 [2]. Marquis, Robert W.; Lago, Amparo M.; Callahan, James F.;Antagonists of the Calcium Receptor. 2. Amino Alcohol-Based Parathyroid Hormone Secretagogues. Journal of Medicinal Chemistry (2009), 52(21), 6599-6605. [3]. Yamamura A, Guo Q, Yamamura H, Zimnicka AM, Pohl NM, Smith KA, Fernandez RA, Zeifman A, Makino A, Dong H, Yuan JX.Enhanced Ca2+-sensing receptor function in idiopathic pulmonary arterial hypertension.Circ Res. 2012 Aug 3;111(4):469-81. Epub 2012 Jun 22. [4]. Nakajima S, Hira T, Hara H.Calcium-sensing receptor mediates dietary peptide-induced CCK secretion in enteroendocrine STC-1 cells.Mol Nutr Food Res. 2012 May;56(5):753-60. [5]. Davey AE, Leach K, Valant C, Conigrave AD, Sexton PM, Christopoulos A.Positive and negative allosteric modulators promote biased signaling at the calcium-sensing receptor.Endocrinology. 2012 Mar;153(3):1232-41. Epub 2011 Dec 30. [6]. Nemeth EF, et al. Calcilytic compounds: potent and selective Ca2+ receptor antagonists that stimulate secretion of parathyroid hormone. J Pharmacol Exp Ther. 2001 Oct;299(1):323-31.

Description

NPS-2143(SB 262470A ) is a selective potent calcium ion-sensing receptor antagonist with IC50 of 43 and 41 nM for cytoplasmic Ca2+ concentrations and parathyroid hormone secretion, respectively.IC50 value: 43 nM(for Ca2+ receptor) [1]Target: CaSRin vitro: NPS 2143, even when tested at much higher concentrations (3 microM), did not affect the activity of a number of other G protein-coupled receptors, including those most structurally homologous to the Ca2+ receptor. NPS 2143 stimulated parathyroid hormone (PTH) secretion from bovine parathyroid cells (EC50 of 41 nM) over a range of extracellular Ca2+ concentrations and reversed the effects of the calcimimetic compound NPS R-467 on [Ca2+]i and on secretion of PTH [1]. The first reported calcilytic compound was NPS 2143, an orally active molecule which elicits rapid, 3- to 4-fold increases in circulating levels of PTH [2].in vivo: When infused intravenously in normal rats, NPS 2143 caused a rapid and large increase in plasma levels of PTH. Ca2+ receptor antagonists are termed calcilytics and NPS 2143 is the first substance (either atomic or molecular) shown to possess such activity [1]. When administered together with an antiresorptive agent (estradiol), NPS 2143 causes an increase in trabecular bone volume and bone mineral density in osteopenic rats [2].

Related Catalog

Signaling Pathways >>GPCR/G Protein >>CaSRResearch Areas >>Metabolic Disease

References

[1]. Huang Y, Breitwieser GE. Rescue of calcium-sensing receptor mutants by allosteric modulators reveals a conformational checkpoint in receptor biogenesis. J Biol Chem. 2007 Mar 30;282(13):9517-25

[2]. Marquis, Robert W.; Lago, Amparo M.; Callahan, James F.;Antagonists of the Calcium Receptor. 2. Amino Alcohol-Based Parathyroid Hormone Secretagogues. Journal of Medicinal Chemistry (2009), 52(21), 6599-6605.

[3]. Yamamura A, Guo Q, Yamamura H, Zimnicka AM, Pohl NM, Smith KA, Fernandez RA, Zeifman A, Makino A, Dong H, Yuan JX.Enhanced Ca2+-sensing receptor function in idiopathic pulmonary arterial hypertension.Circ Res. 2012 Aug 3;111(4):469-81. Epub 2012 Jun 22.

[4]. Nakajima S, Hira T, Hara H.Calcium-sensing receptor mediates dietary peptide-induced CCK secretion in enteroendocrine STC-1 cells.Mol Nutr Food Res. 2012 May;56(5):753-60.

[5]. Davey AE, Leach K, Valant C, Conigrave AD, Sexton PM, Christopoulos A.Positive and negative allosteric modulators promote biased signaling at the calcium-sensing receptor.Endocrinology. 2012 Mar;153(3):1232-41. Epub 2011 Dec 30.

[6]. Nemeth EF, et al. Calcilytic compounds: potent and selective Ca2+ receptor antagonists that stimulate secretion of parathyroid hormone. J Pharmacol Exp Ther. 2001 Oct;299(1):323-31.

Chemical & Physical Properties

Molecular Formula	C₂₄H₂₆Cl₂N₂O₂
Molecular Weight	445.381
Exact Mass	444.137146
InChIKey	ZEBNDUQLNGYBNL-VEIFNGETSA-N
SMILES	CC(C)(Cc1ccc2ccccc2c1)NCC(O)COc1cccc(Cl)c1C#N.Cl
Storage condition	2-8°C

Safety Information

Symbol	GHS07, GHS09
Signal Word	Warning
Hazard Statements	H302 + H312 + H332-H410
Precautionary Statements	P273-P280-P501
Hazard Codes	Xn,N
Risk Phrases	20/21/22-50/53
Safety Phrases	36/37-60-61
RIDADR	UN 3077 9 / PGIII

Articles2

Acetylcholine protects mesenteric arteries against hypoxia/reoxygenation injury via inhibiting calcium-sensing receptor.

J. Pharmacol. Sci. 127 , 481-8, (2015)

The Ca(2+)-sensing receptor (CaSR) plays an important role in regulating vascular tone. In the present study, we investigated the positive effects of the vagal neurotransmitter acetylcholine by suppre...

Parathyroid-specific deletion of dicer-dependent microRNAs abrogates the response of the parathyroid to acute and chronic hypocalcemia and uremia.

FASEB J. 29 , 3964-76, (2015)

MicroRNAs (miRNAs) down-regulate gene expression and have vital roles in biology but their functions in the parathyroid are unexplored. To study this, we generated parathyroid-specific Dicer1 knockout...

Synonyms

MFCD16038896

Benzonitrile, 2-chloro-6-[(2R)-3-[[1,1-dimethyl-2-(2-naphthalenyl)ethyl]amino]-2-hydroxypropoxy]-, hydrochloride (1:1)

2-Chloro-6-[(2R)-2-hydroxy-3-{[2-methyl-1-(2-naphthyl)-2-propanyl]amino}propoxy]benzonitrile hydrochloride (1:1)

NPS-2143 (hydrochloride)

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