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efepristin   Click here for help

GtoPdb Ligand ID: 14347

Synonyms: ostreogrycin B2 | pristinamycin IB | vernamycin Bβ
Compound class: Synthetic organic
Comment: Efepristin is a streptogramin antibacterial a semi-synthetic derivative of It inhibits the late stage of protein synthesis by binding to the bacterial 50S ribosomal subunit.
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 18
Hydrogen bond donors 5
Rotatable bonds 8
Topological polar surface area 236.22
Molecular weight 852.93
XLogP 0.33
No. Lipinski's rules broken 2

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 CC[C@@H]1C(=O)N2CCC[C@H]2C(=O)N(C)[C@@H](CC3=CC=C(C=C3)NC)C(=O)N4CCC(=O)C[C@H]4C(=O)N[C@@H](C5=CC=CC=C5)C(=O)O[C@H](C)[C@@H](C(=O)N1)NC(=O)C6=NC=CC=C6O
Isomeric SMILES CC[C@@H]1C(=O)N2CCC[C@H]2C(=O)N([C@H](C(=O)N3CCC(=O)C[C@H]3C(=O)N[C@H](C(=O)O[C@@H]([C@@H](C(=O)N1)NC(=O)C4=C(C=CC=N4)O)C)C5=CC=CC=C5)CC6=CC=C(C=C6)NC)C
InChI InChI=1S/C44H52N8O10/c1-5-30-41(58)51-21-10-13-31(51)42(59)50(4)33(23-26-15-17-28(45-3)18-16-26)43(60)52-22-19-29(53)24-32(52)38(55)49-36(27-11-7-6-8-12-27)44(61)62-25(2)35(39(56)47-30)48-40(57)37-34(54)14-9-20-46-37/h6-9,11-12,14-18,20,25,30-33,35-36,45,54H,5,10,13,19,21-24H2,1-4H3,(H,47,56)(H,48,57)(H,49,55)/t25-,30-,31+,32+,33+,35+,36+/m1/s1
InChI Key PCOXSOQWQVRJCH-RIECGXCRSA-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
International Nonproprietary Names Click here for help
INN number INN
7472 efepristin
Synonyms Click here for help
ostreogrycin B2 | pristinamycin IB | vernamycin Bβ
Database Links Click here for help
Specialist databases
Antibiotic DB Antibiotic DB Database logo Efepristin
Other databases
CAS Registry No. 57206-54-9 (source: Scifinder)
ChEBI CHEBI:8418
ChEMBL Ligand CHEMBL2105803
PubChem CID 5748661
Search Google for chemical match using the InChIKey PCOXSOQWQVRJCH-RIECGXCRSA-N
Search Google for chemicals with the same backbone PCOXSOQWQVRJCH
Search PubMed clinical trials efepristin
Search PubMed titles efepristin
Search PubMed titles/abstracts efepristin
UniChem Compound Search for chemical match using the InChIKey PCOXSOQWQVRJCH-RIECGXCRSA-N
UniChem Connectivity Search for chemical match using the InChIKey PCOXSOQWQVRJCH-RIECGXCRSA-N