PeptideDB

Z-LVG-CHN2 119670-30-3

Z-LVG-CHN2 119670-30-3

CAS No.: 119670-30-3

Z-LVG-CHN2 is an intracellular irreversible inhibitor of cysteine protease. Z-LVG-CHN2 is a tripeptide analogue that mim
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Z-LVG-CHN2 is an intracellular irreversible inhibitor of cysteine protease. Z-LVG-CHN2 is a tripeptide analogue that mimics part of the binding center of human cysteine protease. Z-LVG-CHN2 has an inhibitory effect on HSV but has no significant effect on poliovirus replication. By inhibiting the 3CL pro protease of SARS-COV-2, Z-LVG-CHN2 effectively inhibits SARS-COV-2 activity (EC50=190 nM).

Physicochemical Properties


Molecular Formula C22H31N5O5
Molecular Weight 445.51204
Exact Mass 445.232
CAS # 119670-30-3
Related CAS # Z-L(D-Val)G-CHN2
PubChem CID 73715817
Appearance Off-white to yellow solid powder
LogP 3
Hydrogen Bond Donor Count 3
Hydrogen Bond Acceptor Count 6
Rotatable Bond Count 13
Heavy Atom Count 32
Complexity 697
Defined Atom Stereocenter Count 0
SMILES

N#[N+]/C=C(/CN[C@H](C(NC([C@@H](NC(OCC1C=CC=CC=1)=O)CC(C)C)=O)=O)C(C)C)\[O-]

InChi Key KRMMQWXJLDORCJ-UHFFFAOYSA-N
InChi Code

InChI=1S/C22H31N5O5/c1-14(2)10-18(26-22(31)32-13-16-8-6-5-7-9-16)20(29)27-19(15(3)4)21(30)24-11-17(28)12-25-23/h5-9,12,14-15,18-19H,10-11,13H2,1-4H3,(H,24,30)(H,26,31)(H,27,29)
Chemical Name

benzyl N-[1-[[1-[(3-diazo-2-oxopropyl)amino]-3-methyl-1-oxobutan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]carbamate
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)

Biological Activity


Targets EC50: 190 nM (SAR-COV-2)[3]
ln Vitro Z-LVG-CHN2 (0-10 μM; 16 hours pretreatment) exhibits an EC50 value of 0.19 μM[1] and, in Vero E6 cells intended to capture multicycle replication, inhibits antiviral activity in a measurable dose-dependent manner.
Cell Assay Cell Viability Assay[3]
Cell Types: Vero E6 cells
Tested Concentrations: 0.001 μM, 0.003 μM, 0.1 μM, 0.3 μM, 1 μM, 2.5 μM
Incubation Duration: Pre-treated for 16 h and then cultured for 24 hrs (hours)
Experimental Results: Inhibited SARS-COV-2 virus replication in a dose-dependent manner.
References

[1]. Inhibition of growth of human TE2 and C-33A cells by the cell-permeant calpain inhibitor benzyloxycarbonyl-Leu-Leu-Tyr diazomethyl ketone. Exp Cell Res. 1994 Nov;215(1):164-71.

[2]. Cystatin C, a human proteinase inhibitor, blocks replication of herpes simplex virus. J Virol.

[3]. A Large-scale Drug Repositioning Survey for SARS-CoV-2 Antivirals. bioRxiv. 2020 Apr 17;2020.04.16.044016.


Solubility Data


Solubility (In Vitro) DMSO : 100 mg/mL (224.46 mM)
Solubility (In Vivo) Solubility in Formulation 1: 2.5 mg/mL (5.61 mM) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), suspension solution; with sonication.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: 2.5 mg/mL (5.61 mM) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), suspension solution; with ultrasonication.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

Solubility in Formulation 3: ≥ 2.5 mg/mL (5.61 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 25.0 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 2.2446 mL 11.2231 mL 22.4462 mL
5 mM 0.4489 mL 2.2446 mL 4.4892 mL
10 mM 0.2245 mL 1.1223 mL 2.2446 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.