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Lanopepden

Alias: GSK-322; GSK322; GSK 322; GSK-1322322; GSK1322322; GSK 1322322; GSK-1322322B; GSK-1322322J; GSK 1322322B
Cat No.:V3525 Purity: ≥98%
Lanopepden (formerly known as GSK 1322322 and GSK-322) is a novel, potent and selective peptide deformylase inhibitor with activity againstStaphylococcus aureusstrains with MICs of 1 and 1 mg/L for ATCC 29213 and ATCC 25923 strain, respectively.
Lanopepden
Lanopepden Chemical Structure CAS No.: 1152107-25-9
Product category: Bacterial
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
Other Sizes

Other Forms of Lanopepden:

  • Lanopepden mesylate
  • Lanopepden camsylate
Official Supplier of:
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Top Publications Citing lnvivochem Products
Purity & Quality Control Documentation

Purity: ≥98%

Product Description
Lanopepden (formerly known as GSK 1322322 and GSK-322) is a novel, potent and selective peptide deformylase inhibitor with activity against Staphylococcus aureus strains with MICs of 1 and 1 mg/L for ATCC 29213 and ATCC 25923 strain, respectively. It has good in vitro activity against bacteria associated with community-acquired pneumonia and skin infections. Lanopepden had bactericidal activity against S. pneumoniae, H. influenzae, S. pyogenes, and S. aureus, demonstrating a ≥ 3-log(10) decrease in the number of CFU/ml at 4× MIC within 24 h in 29 of the 33 strains tested. Lanopepden represents a valuable alternative therapy for the treatment of infectious diseases caused by drug-resistant pathogens.
Lanopepden (GSK‑1322322, CAS#: 1152107‑25‑9) is a novel, potent, and selective peptide deformylase (PDF) inhibitor with activity against Gram‑positive bacteria (including S. aureus, MIC ~1 mg/L); it blocks bacterial protein maturation by preventing removal of N‑formyl groups, and has been studied for community‑acquired pneumonia and skin infections.
Biological Activity I Assay Protocols (From Reference)
Targets
Lanopepden targets bacterial peptide deformylase (PDF), an essential enzyme that removes N‑formyl groups from nascent polypeptides. Inhibition of PDF leads to accumulation of defective proteins, impairing bacterial growth and viability. This target is absent in mammals, providing selectivity.
ln Vitro
In vitro, lanopepden shows good activity against S. aureus with MICs of 1 mg/L for ATCC 29213 and 25923, and bactericidal activity against S. pneumoniae. Its potency against clinically relevant respiratory and skin pathogens supports its use in bacterial infections.
ln Vivo
In vivo, lanopepden has been evaluated in preclinical models of pneumonia and skin infections; it shows efficacy in reducing bacterial burden. It has progressed to clinical trials for these indications, though development status may have changed.
Enzyme Assay
PDF inhibitory activity is measured in cell‑free enzyme assays using recombinant bacterial PDF, a formylated peptide substrate, and varying concentrations of lanopepden; the removal of formyl groups is quantified by HPLC or mass spectrometry to determine IC50.
Cell Assay
Cell‑based assays involve broth microdilution to determine MIC against bacterial strains, including S. aureus and S. pneumoniae. Bactericidal activity is assessed by time‑kill curves.
Animal Protocol
In vivo animal models of infection (e.g., mouse thigh or lung infection) are used; lanopepden is administered orally or intravenously, and bacterial colony counts in tissues are measured post‑treatment to evaluate efficacy.
ADME/Pharmacokinetics
Lanopepden’s PK properties have been studied in preclinical species and early clinical trials; it shows oral bioavailability and appropriate tissue distribution. Detailed half‑life, clearance, and metabolic pathways are not fully public, but it has been used in clinical research.
Toxicity/Toxicokinetics
Toxicity data are not extensively reported; as a PDF inhibitor, potential concerns include mitochondrial toxicity because mitochondria also contain PDF, but selectivity may mitigate this. Safety studies would be required for clinical development.
References
2015 Sep;59(9):5747-60.
Additional Infomation
Lanopepden has been used in research trials for the treatment of pneumonia, bacterial infections, skin diseases, infectious diseases, and bacterial skin infections.
Lanopepden is an investigational antibacterial not approved; it was developed for community‑acquired pneumonia and skin infections. Its novel mechanism of action offers an alternative to existing antibiotics, but further development status is uncertain; it represents a promising class.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C22H34N7O4F
Molecular Weight
479.54826
Exact Mass
479.266
Elemental Analysis
C, 55.10; H, 7.15; F, 3.96; N, 20.45; O, 13.34
CAS #
1152107-25-9
Related CAS #
1441390-17-5 (mesylate);1152107-25-9;1441390-22-2 (2 mesylate);1441390-28-8 (camsylate);
PubChem CID
52918384
Appearance
Solid powder
LogP
2.484
Hydrogen Bond Donor Count
3
Hydrogen Bond Acceptor Count
10
Rotatable Bond Count
8
Heavy Atom Count
34
Complexity
686
Defined Atom Stereocenter Count
2
SMILES
O=CN(C[C@@H](CC1CCCC1)C(NNC2=NC(C)=NC(N3C[C@@]4([H])COCCN4CC3)=C2F)=O)O
InChi Key
SWHNZGMQMGFQGW-MSOLQXFVSA-N
InChi Code
InChI=1S/C22H34FN7O4/c1-15-24-20(19(23)21(25-15)29-7-6-28-8-9-34-13-18(28)12-29)26-27-22(32)17(11-30(33)14-31)10-16-4-2-3-5-16/h14,16-18,33H,2-13H2,1H3,(H,27,32)(H,24,25,26)/t17-,18+/m1/s1
Chemical Name
N-[(2R)-2-(cyclopentylmethyl)-3-(2-{5-fluoro- 6-[(9aS)-hexahydropyrazino[2,1-c][1,4]oxazin-8(1H)-yl]- 2-methylpyrimidin-4-yl}hydrazin-1-yl)-3-oxopropyl]- N-hydroxyformamide
Synonyms
GSK-322; GSK322; GSK 322; GSK-1322322; GSK1322322; GSK 1322322; GSK-1322322B; GSK-1322322J; GSK 1322322B
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~30 mg/mL (~62.56 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 3 mg/mL (6.26 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 30.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.0853 mL 10.4264 mL 20.8529 mL
5 mM 0.4171 mL 2.0853 mL 4.1706 mL
10 mM 0.2085 mL 1.0426 mL 2.0853 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Biological Data
  • Concentration-dependent activities of GSK1322322 against extracellular (MHB; pH 7.4 [left panel]) and intracellular (THP-1 monocytes [right panel]) forms of S. aureus strains with different resistance phenotypes (see Table 1 for individual MICs and patterns of resistance to the antistaphylococcal agents tested). Antimicrob Agents Chemother.2015 Sep;59(9):5747-60.
  • Antimicrob Agents Chemother.2015 Sep;59(9):5747-60.
  • Kinetics of accumulation and release of GSK1322322 in human THP-1 monocytes and murine J774 macrophages. Antimicrob Agents Chemother.2015 Sep;59(9):5747-60.
  • Subcellular distribution of [14C]GSK1322322 and of maker enzymes (lactate dehydrogenase, cytosol; cytochrome c-oxidase, mitochondria; N-acetyl-β-hexosaminidase, lysosomes) in homogenates of THP-1 monocytes Antimicrob Agents Chemother.2015 Sep;59(9):5747-60.
  • Antimicrob Agents Chemother.2015 Sep;59(9):5747-60.
  • Fractionation of cytoplasmic extracts (homogenates minus the N fraction) of J774 macrophages by density equilibration in a linear sucrose gradient (collected in 12 discrete fractions). Antimicrob Agents Chemother.2015 Sep;59(9):5747-60.
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