MDL-28170   Click here for help

GtoPdb Ligand ID: 10745

Synonyms: calpain inhibitor III | MDL28170 | N-benzyloxycarbonyl-L-valyl-L-phenylalaninal | N-CBZ-Val-Phe-al
Compound class: Synthetic organic
Comment: MDL-28170 is a calpain and cathepsin B inhibitor [1]. It impairs impairs infection by SARS-CoV and Ebola virus (EBOV). MDL-28170 has some antiviral activity against SARS-CoV-2, and antagonises viral replication in human iPSC-derived pneumocyte-like cells [2].
2D Structure
Click here for help

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.

✖
Click here for structure editor
Physico-chemical Properties
Click here for help

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.

✖
Hydrogen bond acceptors 6
Hydrogen bond donors 2
Rotatable bonds 12
Topological polar surface area 84.5
Molecular weight 382.19
XLogP 3.71
No. Lipinski's rules broken 0
SMILES / InChI / InChIKey
Click here for help

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.

✖
Canonical SMILES O=C[C@@H](NC(=O)[C@H](C(C)C)NC(=O)OCc1ccccc1)Cc1ccccc1
Isomeric SMILES O=C[C@@H](NC(=O)[C@H](C(C)C)NC(=O)OCc1ccccc1)Cc1ccccc1
InChI InChI=1S/C22H26N2O4/c1-16(2)20(24-22(27)28-15-18-11-7-4-8-12-18)21(26)23-19(14-25)13-17-9-5-3-6-10-17/h3-12,14,16,19-20H,13,15H2,1-2H3,(H,23,26)(H,24,27)/t19-,20-/m0/s1
InChI Key NGBKFLTYGSREKK-PMACEKPBSA-N
References
1. Chen ZF, Schottler F, Lee KS. (1997)
Neuronal recovery after moderate hypoxia is improved by the calpain inhibitor MDL28170.
Brain Res, 769 (1): 188-92. [PMID:9374290]
2. Riva L, Yuan S, Yin X, Martin-Sancho L, Matsunaga N, Pache L, Burgstaller-Muehlbacher S, De Jesus PD, Teriete P, Hull MV et al.. (2020)
Discovery of SARS-CoV-2 antiviral drugs through large-scale compound repurposing.
Nature, [Epub ahead of print]. DOI: 10.1038/s41586-020-2577-1