CRX-555   Click here for help

GtoPdb Ligand ID: 10091

Synonyms: CRX555 | N-[(3R)-3-(Octanoyloxy)myristoyl]-O-[2-[[(3R)-3-(octanoyloxy)myristoyl]amino]-3-O-[(3R)-3-(octanoyloxy)myristoyl]-4-O-phosphono-2-deoxy-beta-D-glucopyranosyl]-L-serine
Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: CRX-555 is a synthetic Toll-like receptor 4 (TLR4) partial agonist from the Corixa Corporation [9]. It is one of a series of lipid A mimetic aminoalkyl glucosaminide phosphate compounds that were synthesised with different length secondary acyl chains. CRX-555 has 8 carbon atoms in each of its 3 secondary acyl chains. The chemical structures for aminoalkyl glucosaminide phosphate lipid A mimetics including CRX-555 were originally claimed in patent US6303347B1 (now expired) TLR4 as potential adjuvants and immunoeffectors [8]. A later patent (WO2008128997A1 [4]) claims these compounds for prophylactic and therapeutic applications in autoimmune diseases. The partial agonist effect of CRX-555 was demonstrated in HeLa cells transfected with TLR4/MD-2/CD14 and an IL-8 luciferase promoter construct. While CRX-527 gave a maximum stimulation of almost 60-fold (at 10μg/ml), the maximum stimulation by CRX-555 at this concentration was only ~25-fold [9].
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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Physico-chemical Properties
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Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/). All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

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Hydrogen bond acceptors 21
Hydrogen bond donors 6
Rotatable bonds 73
Topological polar surface area 315.96
Molecular weight 1402.97
XLogP 22.5
No. Lipinski's rules broken 4

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
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.

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)

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Canonical SMILES CCCCCCCCCCCC(CC(=O)NC1C(OCC(C(=O)O)NC(=O)CC(OC(=O)CCCCCCC)CCCCCCCCCCC)OC(C(C1OC(=O)CC(OC(=O)CCCCCCC)CCCCCCCCCCC)OP(=O)(O)O)CO)OC(=O)CCCCCCC
Isomeric SMILES CCCCCCCCCCC[C@H](CC(=O)N[C@H]1[C@H](OC[C@@H](C(=O)O)NC(=O)C[C@H](OC(=O)CCCCCCC)CCCCCCCCCCC)O[C@@H]([C@H]([C@@H]1OC(=O)C[C@H](OC(=O)CCCCCCC)CCCCCCCCCCC)OP(=O)(O)O)CO)OC(=O)CCCCCCC
InChI InChI=1S/C75H139N2O19P/c1-7-13-19-25-28-31-34-40-43-49-60(91-67(81)52-46-37-22-16-10-4)55-65(79)76-63(74(85)86)59-90-75-71(77-66(80)56-61(92-68(82)53-47-38-23-17-11-5)50-44-41-35-32-29-26-20-14-8-2)73(72(64(58-78)94-75)96-97(87,88)89)95-70(84)57-62(93-69(83)54-48-39-24-18-12-6)51-45-42-36-33-30-27-21-15-9-3/h60-64,71-73,75,78H,7-59H2,1-6H3,(H,76,79)(H,77,80)(H,85,86)(H2,87,88,89)/t60-,61-,62-,63+,64-,71-,72-,73-,75-/m1/s1
InChI Key WNFNQTGQGFHQLU-NRBIUWCVSA-N

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
Classification Click here for help
Compound class Synthetic organic
IUPAC Name Click here for help
(2S)-3-[(2R,3R,4R,5S,6R)-6-(hydroxymethyl)-3-[[(3R)-3-octanoyloxytetradecanoyl]amino]-4-[(3R)-3-octanoyloxytetradecanoyl]oxy-5-phosphonooxyoxan-2-yl]oxy-2-[[(3R)-3-octanoyloxytetradecanoyl]amino]propanoic acid
Synonyms Click here for help
CRX555 | N-[(3R)-3-(Octanoyloxy)myristoyl]-O-[2-[[(3R)-3-(octanoyloxy)myristoyl]amino]-3-O-[(3R)-3-(octanoyloxy)myristoyl]-4-O-phosphono-2-deoxy-beta-D-glucopyranosyl]-L-serine
Database Links Click here for help
GtoPdb PubChem SID 381118801
PubChem CID 87596969
Search Google for chemical match using the InChIKey WNFNQTGQGFHQLU-NRBIUWCVSA-N
Search Google for chemicals with the same backbone WNFNQTGQGFHQLU
UniChem Compound Search for chemical match using the InChIKey WNFNQTGQGFHQLU-NRBIUWCVSA-N
UniChem Connectivity Search for chemical match using the InChIKey WNFNQTGQGFHQLU-NRBIUWCVSA-N