NE 100 hydrochloride - CAS 149409-57-4
Category: Inhibitor
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Sigma Receptor
NE 100 hydrochloride is a σ1 receptor antagonist with IC50 value of 4.16 nM. It displays antipsychotic activity in vivo.
≥98% by HPLC
4-Methoxy-3-(2-phenylethoxy)-N,N-dipropylbenzeneethanamine hydrochloride
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1.[Atypical antipsychotic profiles of sigma receptor ligands].
Okuyama S Nihon Yakurigaku Zasshi. 1999 Jul;114(1):13-23.
This is a review on the recent results of research on sigma-receptor antagonists. NE-100, a selective sigma1-receptor antagonist, shows improvement of abnormal behaviors and cognitive dysfunction induced by phencyclidine (PCP). However, NE-100 does not inhibit dopamine agonist-induced behaviors nor induces catalepsy. The mode of action of NE-100 is estimated to be the indirect modulation of the NMDA/PCP-receptor ion channel complex and the modulation of dopamine release from the dopaminergic nerve terminals. The recently reported MS-355/MS-377, which is also a selective sigma1-receptor antagonist, has a similar pharmacological profiles as NE-100, but in addition, MS-355/MS-377 inhibits methamphetamine-induced formation of reversal tolerance and also inhibits apomorphine-induced climbing behavior like dopamine D2-receptor antagonists. The report on clinical trial targeting schizophrenia shows results on rimcazole, remoxipride, BMY 14802, panamesine (EMD 57445) and SL 82.0715. Rimcazole was effective in the open study, but the double blind trial was discontinued due to seizure induction. Remoxipride showed efficacy different from those of dopamine D2-receptor antagonists (less extrapyramidal adverse effects), but the trial was discontinued due to occurrence of aplastic anemia.
2.The sigma-selective ligand NE-100 attenuates the effect of phencyclidine in a rat diving model.
Ogawa S;Okuyama S;Tsuchida K;Araki H;Otomo S Gen Pharmacol. 1995 Jan;26(1):177-82.
1. Phencyclidine (PCP) reduces the latency of rats diving into a water-filled pool from a hidden platform, without stereotyped behavior. 2. The sigma-selective ligand, NE-100 (N,N-dipropyl-2-[4-methoxy-3-(2-phenylethoxy)phenyl]-ethyl-amine monohydrochloride), attenuates the effects of PCP in this procedure. 3. The serotonin2 (5-HT2) antagonist, ritanserin, and the sigma receptor ligands, 1-(cyclopropylmethyl)-4-[2'(4"-fluorophenyl)-2'-oxoethyl]- piperidine HBr (Dup734), 4-[2'-(4"-cyanophenyl)-2'-oxoethyl]-1- (cyclopropylmethyl)piperidine (XJ448), alpha-(4-fluorophenyl)-4-(5-fluoro-2-pyrimidinyl)-1-piperazine butanol (BMY14802) and rimcazole similarly attenuate the effects of PCP. 4. The dopamine D2/sigma ligands, haloperidol and cis-N-(1-benzyl-2-methyl-pyrrolidin-3-yl)-2-methoxy-5-chloro-4- methylaminobenzamide (YM-09151-2) completely reverse the effects of PCP, whereas the same dose ranges of these drugs produce sedation. 5. The dopamine D2-selective antagonist, sulpiride, has no apparent effect on the PCP latency to the rat dive. 6. Thus, PCP-induced diving behavior was improved by sigma ligands and the 5-HT2 antagonist. This model of negative symptoms in an experimental animal will facilitate experiments on drug treatments for schizophrenia.
3.Synthesis and in vivo evaluation of [11C]SA6298 as a PET sigma1 receptor ligand.
Kawamura K;Ishiwata K;Tajima H;Ishii S;Shimada Y;Matsuno K;Homma Y;Senda M Nucl Med Biol. 1999 Nov;26(8):915-22.
The potential of a 11C-labeled selective sigma1 receptor ligand, 1-(3,4-dimethoxyphenethyl)-4-[3-(3,4-dichlorophenyl)propyl]piperazine ([11C]SA6298), was evaluated as a positron emission tomography (PET) ligand for mapping sigma, receptors in the central nervous system and peripheral organs. [11C]SA6298 was synthesized by methylation of the desmethyl SA6298 with [11C]CH3I, with the decay-corrected radiochemical yield of 39 +/- 5% based on [11C]CH3I and with the specific activity of 53 +/- 17 TBq/mmol within 20 min from end of bombardment (EOB). In mice, the uptake of [11C]SA6298 was significantly decreased by carrier loading in the brain, liver, spleen, heart, lung, small intestine, and kidney in which sigma receptors are present as well as in the skeletal muscle. Pretreatment with SA6298 also blocked the uptake of [11C]SA6298 by these organs except for the small intestine, but significant displacement of [11C]SA6298 by posttreatment with SA6298 was observed only in the heart, lung, and muscle. In the blocking study with one of the eight sigma receptor ligands, including haloperidol, SA6298, NE-100, (+)-pentazocine, SA4503, (-)-pentazocine, (+)-3-PPP, and (+)-SKF 10,047 (in the order of the affinity for sigma1 receptor subtype), only SA6298 and an analog SA4503 significantly reduced the brain uptake of [11C]SA6298 to approximately 80% of the control, but the other six ligands did not.
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CAS 149409-57-4 NE 100 hydrochloride

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