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Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
[Leu5]-Enkephalin, amide is a δ opioid receptor agonist.
In Vitro
[Leu5]-Enkephalin causes concentration-dependent, reversible inhibition of pelvic nerve-evoked contractions, with an IC 50 value of 2.1 nM. MCE has not independently confirmed the accuracy of these methods. They are for reference only.
In Vivo
Levels of [Leu5]-Enkephalin are significantly increased in the nucleus raphe magnus (NRM) of rats 2 weeks after the injection of complete Freund's adjuvant (CFA) (1.02±0.2 pmol/mg protein) as compared with saline-treated rats (0.49±0.04 pmol/mg protein; p<0.01). Tissue levels of [Leu5]-Enkephalin are uniformly increased in the caudal ventrolateral periaqueductal gray (PAG) 4 hr (1.15±0.25 pmol/mg protein), 4 d (1.16±0.18 pmol/mg protein), and 2 weeks (1.18±0.17 pmol/mg protein) after the injection of CFA as compared with saline-treated rats (0.55±0.03 pmol/mg protein; p<0.05, all times). A smaller increase in the levels of [Leu5]-Enkephalin occurred in the rostral aspect of the ventrolateral PAG at all time points. Finally, levels of [Leu5]-Enkephalin are also increased in the contralateral microcellular tegmental nucleus 4 d after the injection of CFA (0.53±0.04 pmol/mg protein) compared with levels in saline-treated rats (0.38±0.02 pmol/mg protein; p<0.05) . MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Form:Solid
IC50& Target:δ opioid receptor
| Canonical Smiles | CC(C)CC(C(=O)N)NC(=O)C(CC1=CC=CC=C1)NC(=O)CNC(=O)CNC(=O)C(CC2=CC=C(C=C2)O)N |
|---|---|
| IUPAC Name | 2-[[2-[[2-[[2-[[2-amino-3-(4-hydroxyphenyl)propanoyl]amino]acetyl]amino]acetyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanamide |
| InChIKey | YZXGODHVAJPXSG-UHFFFAOYSA-N |
| INCHI | 1S/C28H38N6O6/c1-17(2)12-22(26(30)38)34-28(40)23(14-18-6-4-3-5-7-18)33-25(37)16-31-24(36)15-32-27(39)21(29)13-19-8-10-20(35)11-9-19/h3-11,17,21-23,35H,12-16,29H2,1-2H3,(H2,30,38)(H,31,36)(H,32,39)(H,33,37)(H,34,40) |
| Isomeric SMILES | CC(C)CC(C(=O)N)NC(=O)C(CC1=CC=CC=C1)NC(=O)CNC(=O)CNC(=O)C(CC2=CC=C(C=C2)O)N |
| Alternate CAS | 60117-24-0 |
| PubChem CID | 100168 |
| NSC Number | 351912 |
| MeSH Entry Terms | enkephalinamide, Leu-;enkephalinamide-Leu;Leu-enkephalinamide;leucine enkephalinamide |
| Molecular Weight | 554.64 |
Comprehensive hazard, handling, storage, and regulatory compliance document.
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View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organic acids and derivatives |
| Class | Carboxylic acids and derivatives |
| Subclass | Amino acids, peptides, and analogues |
| Intermediate Tree Nodes | Peptides |
| Direct Parent | Oligopeptides |
| Alternative Parents | Tyrosine and derivatives Phenylalanine and derivatives Leucine and derivatives N-acyl-alpha amino acids and derivatives Alpha amino acid amides Amphetamines and derivatives 1-hydroxy-2-unsubstituted benzenoids Aralkylamines Fatty amides Secondary carboxylic acid amides Primary carboxylic acid amides Carbonyl compounds Hydrocarbon derivatives Monoalkylamines Organic oxides Organopnictogen compounds |
| Molecular Framework | Aromatic homomonocyclic compounds |
| Substituents | Alpha-oligopeptide - Tyrosine or derivatives - Phenylalanine or derivatives - Leucine or derivatives - N-acyl-alpha amino acid or derivatives - Alpha-amino acid amide - Amphetamine or derivatives - N-substituted-alpha-amino acid - Alpha-amino acid or derivatives - 1-hydroxy-2-unsubstituted benzenoid - Aralkylamine - Phenol - Fatty acyl - Benzenoid - Monocyclic benzene moiety - Fatty amide - Secondary carboxylic acid amide - Primary carboxylic acid amide - Carboxamide group - Amino acid or derivatives - Organic nitrogen compound - Primary aliphatic amine - Organonitrogen compound - Organooxygen compound - Carbonyl group - Primary amine - Hydrocarbon derivative - Organic oxide - Amine - Organopnictogen compound - Organic oxygen compound - Aromatic homomonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as oligopeptides. These are organic compounds containing a sequence of between three and ten alpha-amino acids joined by peptide bonds. |
| External Descriptors | Not available |
| Solubility | DMSO : 250 mg/mL (450.74 mM; Need ultrasonic) |
|---|---|
| Molecular Weight | 554.600 g/mol |
| XLogP3 | 0.700 |
| Hydrogen Bond Donor Count | 7 |
| Hydrogen Bond Acceptor Count | 7 |
| Rotatable Bond Count | 15 |
| Exact Mass | 554.285 Da |
| Monoisotopic Mass | 554.285 Da |
| Topological Polar Surface Area | 206.000 Ų |
| Heavy Atom Count | 40 |
| Formal Charge | 0 |
| Complexity | 854.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 3 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |