barusiban   Click here for help

GtoPdb Ligand ID: 10890

Synonyms: C4.6,S1-cyclo[N-(3-sulfanylpropanoyl)-D-tryptophyl-L-isoleucyl-L-alloisoleucyl-L-asparaginyl-L-2-aminobutanoyl-N-methyl-L-ornithinol] | FE 200 440 [2] | FE-200440
Compound class: Peptide or derivative
Comment: Barusiban (FE 200440) is an oxytocin receptor antagonist [1-2,5]. It was developed by Ferring Pharmaceuticals as a tocolytic agent, to counteract oxytocin-induced myometrial contractions [4]. Chemically it is a synthetic cyclic hexapeptide containing five unnatural amino acids and only one D-amino acid.
2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

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Canonical SMILES NCCC[C@H](N(C(=O)[C@@H]1CCSCCC(=O)N[C@H](Cc2c[nH]c3c2cccc3)C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N1)CC(=O)N)[C@@H](CC)C)[C@H](CC)C)C)CO
Isomeric SMILES NCCC[C@H](N(C(=O)[C@@H]1CCSCCC(=O)N[C@H](Cc2c[nH]c3c2cccc3)C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N1)CC(=O)N)[C@@H](CC)C)[C@H](CC)C)C)CO
InChI InChI=1S/C40H63N9O8S/c1-6-23(3)34-38(55)46-31(20-32(42)51)36(53)45-29(40(57)49(5)26(22-50)11-10-16-41)14-17-58-18-15-33(52)44-30(19-25-21-43-28-13-9-8-12-27(25)28)37(54)47-35(24(4)7-2)39(56)48-34/h8-9,12-13,21,23-24,26,29-31,34-35,43,50H,6-7,10-11,14-20,22,41H2,1-5H3,(H2,42,51)(H,44,52)(H,45,53)(H,46,55)(H,47,54)(H,48,56)/t23-,24+,26+,29+,30-,31+,34+,35+/m1/s1
InChI Key UGNGRKKDUVKQDF-IHOMMZCZSA-N

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