enmetazobactam   Click here for help

GtoPdb Ligand ID: 12188

Synonyms: AAI101 | Exblifep® (cefepime + enmetazobactam) | OCID-5090
Approved drug
enmetazobactam is an approved drug (FDA & EMA (2024))
Compound class: Synthetic organic
Comment: Enmetazobactam is an extended-spectrum β-lactamase inhibitor. It is an N-methylated tazobactam derivative. It is intended for use alongside β-lactamase antimicrobials, to reduce their degradation.
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 CDK toolkit. 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 7
Hydrogen bond donors 0
Rotatable bonds 3
Topological polar surface area 124.66
Molecular weight 314.07
XLogP -1.75
No. Lipinski's rules broken 0
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 [O-]C(=O)[C@@H]1N2C(=O)C[C@H]2S(=O)(=O)[C@@]1(C)Cn1cc[n+](n1)C
Isomeric SMILES C[C@@]1([C@@H](N2[C@H](S1(=O)=O)CC2=O)C(=O)[O-])Cn1cc[n+](n1)C
InChI InChI=1S/C11H14N4O5S/c1-11(6-14-4-3-13(2)12-14)9(10(17)18)15-7(16)5-8(15)21(11,19)20/h3-4,8-9H,5-6H2,1-2H3/t8-,9+,11+/m1/s1
InChI Key HFZITXBUTWITPT-YWVKMMECSA-N
No information available.
Summary of Clinical Use Click here for help
Cefepime + enmetazobactam was evaluated for efficacy in the treatment of complicated urinary tract infections [1]. The combination (Exblifep®) was FDA approved for this indication in February 2024 and by the EMA the following month.
Clinical Trials
Clinical Trial ID Title Type Source Comment References
NCT03687255 Safety and Efficacy Study of Cefepime-AAI101 in the Treatment of Complicated Urinary Tract Infections Phase 3 Interventional Allecra 2