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Oritavancin

(Synonyms: LY 333328; Orbactiv)

2 Cited Publications

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Based on 2 publication(s) in Google Scholar

Oritavancin (LY 333328), a semisynthetic derivative of Vancomycin (HY-B0671), is an orally active glycopeptide antibiotic with bactericidal activity against gram-positive organisms. Oritavancin shows antibacterial effect against B. anthracis, such as Ames strain with a MIC value of 0.015 g/mL. Oritavancin inhibits cell wall synthesis and disrupts the membrane potential. Oritavancin inhibits ArlS kinase activity thereby interfering the signal transduction. Oritavancin enters cells by adsorptive endocytosis, which drives it to lysosomes, where it exerts antibiotic activity.

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CAS No.: 171099-57-3
Formule: C₈₆H₉₇Cl₃N₁₀O₂₆
Masse moléculaire:1793.10

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Please store the product under the recommended conditions in the Certificate of Analysis.

Data Sheet (282 KB)

Oritavancin Chemical Structure

CAS No.: 171099-57-3

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Activité biologique
- Description
- IC₅₀ & Target
- In Vitro
- In Vivo
Chemical Information
Publications (2)
Pureté et documentation
Références
Calculators
Help & FAQs
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Activité biologique

Description

IC₅₀ & Target

Glycopeptide

Voir tous les produits spécifiques à Isoform Antibiotic :

In Vitro

Oritavancin (25 μM, 30 min) dose-dependently inhibits the kinase activity of ArlS (3 μg) by 98% with an IC⁵⁰ value of 5.47 μΜ in vitro^[1].
Oritavancin (0.7 μM, 42 h) decreases spx expression in the USA300-Pspx strain^[1].
Oritavancin (3.1 μM, 24 h) disrupts mature MRSA biofilms and facilitates bactericidal activity of Oritavancin and Oxacillin (HY-B0925A) against embedded S. aureus cells^[1].
Oritavancin’ (0-80 μg/mL, 2 h) incubation with increasing extracellular concentrations and the uptake by cells proceed in an cooperative manner in J774 macrophages^[2].
Oritavancin (25 mg/L, 24 h) exerts a marked bactericidal effect against intracellular S. aureus^[2].

Oritavancin accumulation by different cell types^[2]

(The cells were incubated for 2 h at 37°C with 25 mg of the drug per liter in a medium containing 10% FCS)^[2]

Cell type	Accumulation ratio (no. of determinations)
J774 mouse macrophages	66.4±11.8 (12)
THP-1 human monocytes	84.3±7.0 (9)
Rat embryo fibroblasts	72.4±9.4 (6)
LLC-PK1 pig kidney proximal tubular cells	37.8±6.4 (3)
Caco-2 human colorectal cells.	13.8±0.4 (3)

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

Oritavancin (i.p. for 1 and 3 mg/kg or i.v. for 15 and 50 mg/kg, every 48 h for 14 days or a single dose for 30 days) provides significant protection in the mouse inhalation anthrax model^[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model:

Mouse inhalation anthrax model^[3]
Dosage:

i.p. for 1 and 3 mg/kg, i.v. for 15 and 50 mg/kg
Administration:

i.p., every 48 h for 14 days; i.v., a single dose for 30 days administered 24 h after challenge with inhalation anthrax
Result:

Provided significant protection with 1 and 3 mg/kg protecting 50 and 100% of the mice, respectively when administered i.p..
Provided significant protection with 15 and 50 mg/kg protecting 70 or 100% of the mice, respectively when administered i.v..

Chemical Information

CAS No. 171099-57-3
Masse moléculaire 1793.10
Formule C₈₆H₉₇Cl₃N₁₀O₂₆
SMILES

O[C@@H]1[C@@H](O[C@@](O[C@@H](C)[C@@H]2O)([H])C[C@]2(C)NCC3=CC=C(C4=CC=C(Cl)C=C4)C=C3)[C@@H](O[C@H](CO)[C@H]1O)OC5=C(OC6=CC=C([C@H]([C@H]7NC([C@H](NC)CC(C)C)=O)O)C=C6Cl)C=C([C@](NC([C@@H](NC7=O)CC(N)=O)=O)([H])C(N[C@](C8=O)([H])C9=CC%10=C(O)C=C9)=O)C=C5OC%11=CC=C([C@H]([C@](C(N[C@@](C(O)=O)([H])C%12=C%10C(O)=CC(O)=C%12)=O)([H])N8)O[C@@](O[C@@H](C)[C@@H]%13O)([H])C[C@@]%13(N)C)C=C%11Cl
Synonyms

LY 333328; Orbactiv
Livraison

Room temperature in continental US; may vary elsewhere.
Stockage

Please store the product under the recommended conditions in the Certificate of Analysis.

Publications (2)

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Emerg Microbes Infect

The role of ArlRS in regulating oxacillin susceptibility in methicillin-resistant Staphylococcus aureus indicates it is a potential target for antimicrobial resistance breakers. [Abstract]

2019;8(1):503-515. PMID: 30924407
Res Sq

2025 Apr 07.

Pureté et documentation

Select Batch:

Pureté: 99.98%

Assay: 99.98%

ee.: 99.98%

Fiche technique (282 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Instruction de manipulation (2659 KB)

Références

[1]. Bai J, et al. The role of ArlRS in regulating oxacillin susceptibility in methicillin-resistant Staphylococcus aureus indicates it is a potential target for antimicrobial resistance breakers[J]. Emerg Microbes Infect. 2019;8(1):503-515. [Content Brief]

[2]. Van Bambeke F, et al. Cellular pharmacokinetics and pharmacodynamics of the glycopeptide antibiotic oritavancin (LY333328) in a model of J774 mouse macrophages[J]. Antimicrob Agents Chemother. 2004 Aug;48(8):2853-60. [Content Brief]

[3]. Heine HS, et al. Efficacy of oritavancin in a murine model of Bacillus anthracis spore inhalation anthrax. Antimicrob Agents Chemother. 2008 Sep;52(9):3350-7. [Content Brief]

[4]. Coyle EA, et al. Activity of oritavancin (LY333328), an investigational glycopeptide, compared to that of vancomycin against multidrug-resistant Streptococcus pneumoniae in an in vitro pharmacodynamic model. Antimicrob Agents Chemother. 2001 Mar;45(3):706-9. [Content Brief]

[5]. Arhin FF, et al. Effect of polysorbate 80 on oritavancin binding to plastic surfaces: implications for susceptibility testing. Antimicrob Agents Chemother. 2008 May;52(5):1597-603. [Content Brief]

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Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

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Oritavancin

2 Cited Publications

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Publications (2)
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Oritavancin

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Voir tous les produits spécifiques à Isoform Antibiotic

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Oritavancin Related Classifications

Cat. No.: HY-B1831