Acetyl-L-leucine amide
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Acetyl-L-leucine amide

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Category
L-Amino Acids
Catalog number
BAT-003918
CAS number
28529-34-2
Molecular Formula
C8H16N2O2
Molecular Weight
172.20
Acetyl-L-leucine amide
IUPAC Name
(2S)-2-acetamido-4-methylpentanamide
Synonyms
Ac-L-Leu-NH2
Appearance
White powder
Purity
≥ 99% (TLC)
Melting Point
129-135 °C
Storage
Store at 2-8 °C
InChI
InChI=1S/C8H16N2O2/c1-5(2)4-7(8(9)12)10-6(3)11/h5,7H,4H2,1-3H3,(H2,9,12)(H,10,11)/t7-/m0/s1
InChI Key
PHPXQAHAQREGGN-ZETCQYMHSA-N
Canonical SMILES
CC(C)CC(C(=O)N)NC(=O)C
1. Identification of N-{[6-chloro-4-(2,6-dimethoxyphenyl)quinazolin-2-yl]carbonyl}-l-leucine (NTRC-808), a novel nonpeptide chemotype selective for the neurotensin receptor type 2
James B Thomas, et al. Bioorg Med Chem Lett. 2015 Jan 15;25(2):292-6. doi: 10.1016/j.bmcl.2014.11.047. Epub 2014 Nov 24.
Compounds acting via the GPCR neurotensin receptor type 2 (NTS2) display analgesic effects in relevant animal models. Using a pharmacophore model based on known NT receptor nonpeptide compounds, we screened commercial databases to identify compounds that might possess activity at NTS2 receptor sites. Modification of our screening hit to include structural features known to be recognized by NTS1 and NTS2, led to the identification of the novel NTS2 selective nonpeptide, N-{[6-chloro-4-(2,6-dimethoxyphenyl)quinazolin-2-yl]carbonyl}-l-leucine (9). This compound is a potent partial agonist in the FLIPR assay with a profile of activity similar to that of the reference NTS2 analgesic nonpeptide levocabastine (5).
2. Identification of 2-({[1-(4-Fluorophenyl)-5-(2-methoxyphenyl)-1H-pyrazol-3-yl]carbonyl}amino)tricyclo[3.3.1.13,7]decane-2-carboxylic Acid (NTRC-844) as a Selective Antagonist for the Rat Neurotensin Receptor Type 2
James B Thomas, et al. ACS Chem Neurosci. 2016 Sep 21;7(9):1225-31. doi: 10.1021/acschemneuro.6b00097. Epub 2016 Jul 13.
Neurotensin receptor type 2 (NTS2) compounds display analgesic activity in animal pain models. We have identified the first high-affinity NTS2-selective antagonist (8) that is active in vivo. This study also revealed that the NTS2 FLIPR assay designation for a compound, agonist, partial agonist, and so forth, did not correlate with its in vivo activity as observed in the thermal tail-flick acute model of pain. This suggests that calcium mobilization is not the signaling pathway involved in NTS2-mediated analgesia as assessed by the thermal tail-flick model. Finally, we found a significant bias between rat and human for compound 9 in the NTS2 binding assay.
3. Identification of 1-({[1-(4-fluorophenyl)-5-(2-methoxyphenyl)-1H-pyrazol-3-yl]carbonyl}amino)cyclohexane carboxylic acid as a selective nonpeptide neurotensin receptor type 2 compound
James B Thomas, et al. J Med Chem. 2014 Jun 26;57(12):5318-32. doi: 10.1021/jm5003843. Epub 2014 Jun 5.
Compounds active at neurotensin receptors (NTS1 and NTS2) exert analgesic effects on different types of nociceptive modalities, including thermal, mechanical, and chemical stimuli. The NTS2 preferring peptide JMV-431 (2) and the NTS2 selective nonpeptide compound levocabastine (6) have been shown to be effective in relieving the pain associated with peripheral neuropathies. With the aim of identifying novel nonpeptide compounds selective for NTS2, we examined analogues of SR48692 (5a) using a FLIPR calcium assay in CHO cells stably expressing rat NTS2. This led to the discovery of the NTS2 selective nonpeptide compound 1-({[1-(4-fluorophenyl)-5-(2-methoxyphenyl)-1H-pyrazol-3-yl]carbonyl}amino)cyclohexane carboxylic acid (NTRC-739, 7b) starting from the nonselective compound 5a.
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