DOMATINOSTAT


Synonyms	4sc-202 Domatinostat Hdac inhibitor 4sc-202
Status
Molecule Category	UNKNOWN
UNII	264ARM7UXX


Active Pharmaceutical Ingredients Bioactive chemicals	Exact Similarity SubStructure	Threshold (%) >= 70

Structure


InChI Key	PRXXYMVLYKJITB-IZZDOVSWSA-N
Smiles	Cn1cc(-c2ccc(S(=O)(=O)n3ccc(/C=C/C(=O)Nc4ccccc4N)c3)cc2)cn1
InChI	InChI=1S/C23H21N5O3S/c1-27-16-19(14-25-27)18-7-9-20(10-8-18)32(30,31)28-13-12-17(15-28)6-11-23(29)26-22-5-3-2-4-21(22)24/h2-16H,24H2,1H3,(H,26,29)/b11-6+

Physicochemical Descriptors

Property Name	Value
Molecular Formula	C23H21N5O3S
Molecular Weight	447.52
AlogP	3.36
Hydrogen Bond Acceptor	7.0
Hydrogen Bond Donor	2.0
Number of Rotational Bond	6.0
Polar Surface Area	112.01
Molecular species	NEUTRAL
Aromatic Rings	4.0
Heavy Atoms	32.0

Reference

Journal : Eur J Med Chem

Title : HDAC3 is a potential validated target for cancer: An overview on the benzamide-based selective HDAC3 inhibitors through comparative SAR/QSAR/QAAR approaches.

PubMed ID : 30179749

DOI : 10.1016/j.ejmech.2018.08.081

Year : 2018

Volume : 157

First Page : 1127

Last Page : 1142

Authors : Adhikari N, Amin SA, Trivedi P, Jha T, Ghosh B.

Abstract : Deacetylation of histones by histone deacetylase 3 (HDAC3) is involved in apoptosis, cellular progression and DNA damage. Due to the overexpression of HDAC3 in a variety of cancers, it is implicated to be a crucial validated target for cancer. Therefore, HDAC3 selective inhibitors have roles to play in combating these cancers. Nowadays, compounds comprising benzamide functionality as zinc binding group (ZBG) have been emerged out to be highly effective and selective HDAC3 inhibitors. In this article, QSAR and QAAR studies have been conducted on diverse benzamide-derived HDAC3 inhibitors as the first initiative to explore the designing strategies of higher active and selective HDAC3 inhibitors over HDAC1 and HDAC2. QSAR models reveal that molecular size and shape along with the steric effect should have to be optimized to achieve higher HDAC3 inhibition. QAAR models reflect that modification/substitution at the benzamide scaffold should be optimized in such a way so that these molecules possess lower steric bulk along with nonpolar features for achieving higher HDAC3 selectivity over HDAC1 and HDAC2. However, the importance of spiro hydrophobic cap group, as well as electron withdrawing fluorine group at the benzamide scaffold, should be well-accounted for retaining higher HDAC3 selectivity over HDAC1. Moreover, less polar and less hydrophobic benzamides are preferred for HDAC3 selectivity over HDAC2. This detailed structural exploration will surely unveil a new vista of designing highly potent and selective benzamide-based HDAC3 inhibitors that may be a crucial weapon to battle against a variety of cancers.

Reference

Title : Identification of inhibitors of SARS-CoV-2 in-vitro cellular toxicity in human (Caco-2) cells using a large scale drug repurposing collection

DOI : 10.21203/rs.3.rs-23951/v1

Year : 2020

Authors : Bernhard Ellinger, Denisa Bojkova, Andrea Zaliani, Jindrich Cinatl, Carsten Claussen, Sandra Westhaus, Jeanette Reinshagen, Maria Kuzikov, Markus Wolf, Gerd Geisslinger, Philip Gribbon, Sandra Ciesek

Abstract : To identify possible candidates for progression towards clinical studies against SARS-CoV-2, we screened a well-defined collection of 5632 compounds including 3488 compounds which have undergone clinical investigations (marketed drugs, phases 1 -3, and withdrawn) across 600 indications. Compounds were screened for their inhibition of viral induced cytotoxicity using the human epithelial colorectal adenocarcinoma cell line Caco-2 and a SARS-CoV-2 isolate. The primary screen of 5632 compounds gave 271 hits. A total of 64 compounds with IC50 <20 µM were identified, including 19 compounds with IC50 < 1 µM. Of this confirmed hit population, 90% have not yet been previously reported as active against SARS-CoV-2 in-vitro cell assays. Some 37 of the actives are launched drugs, 19 are in phases 1-3 and 10 pre-clinical. Several inhibitors were associated with modulation of host pathways including kinase signaling P53 activation, ubiquitin pathways and PDE activity modulation, with long chain acyl transferases were effective viral inhibitors.

Reference

Title : Identification of inhibitors of SARS-Cov2 M-Pro enzymatic activity using a small molecule repurposing screen

DOI : 10.6019/CHEMBL4495564

Year : 2020

Authors : Maria Kuzikov, Elisa Costanzi, Jeanette Reinshagen, Francesca Esposito, Laura Vangeel, Markus Wolf, Bernhard Ellinger, Carsten Claussen, Gerd Geisslinger, Angela Corona, Daniela Iaconis, Carmine Talarico, Candida Manelfi, Rolando Cannalire, Giulia Rossetti, Jonas Gossen, Simone Albani, Francesco Musiani, Katja Herzog, Yang Ye, Barbara Giabbai, Nicola Demitri, Dirk Jochmans, Steven De Jonghe, Jasper Rymenants, Vincenzo Summa, Enzo Tramontano, Andrea R. Beccari, Pieter Leyssen, Paola Storici, Johan Neyts, Philip Gribbon, and Andrea Zaliani

Abstract : Compound repurposing is an important strategy being pursued in the identification of effective treatment against the SARS-CoV-2 infection and COVID-19 disease. In this regard, SARS-CoV-2 main protease (M-Pro), also termed 3CL-Pro, is an attractive drug target as it plays a central role in viral replication by processing the viral polyprotein into 11 non-structural proteins. We report the results of a screening campaign involving ca 8.7 K compounds containing marketed drugs, clinical and preclinical candidates, and chemicals regarded as safe in humans. We confirmed previously reported inhibitors of 3CL-Pro, but we have also identified 68 compounds with IC50 lower than 1 uM and 127 compounds with IC50 lower than 5 uM. Profiling showed 67% of confirmed hits were selective (> 5 fold) against other Cys- and Ser- proteases (Chymotrypsin and Cathepsin-L) and MERS 3CL-Pro. Selected compounds were also analysed in their binding characteristics.

Reference

Title : Cytopathic SARS-Cov2 screening on VERO-E6 cells in a large repurposing effort

DOI : 10.6019/CHEMBL4495565

Year : 2020

Authors : Andrea Zaliani, Laura Vangeel, Jeanette Reinshagen, Daniela Iaconis, Maria Kuzikov, Oliver Keminer, Markus Wolf, Bernhard Ellinger, Francesca Esposito, Angela Corona, Enzo Tramontano, Candida Manelfi, Katja Herzog, Dirk Jochmans, Steven De Jonghe, Winston Chiu, Thibault Francken, Joost Schepers, Caroline Collard, Kayvan Abbasi, Carsten Claussen , Vincenzo Summa, Andrea R. Beccari, Johan Neyts, Philip Gribbon and Pieter Leyssen

Abstract : Worldwide, there are intensive efforts to identify repurposed drugs as potential therapies against SARS-CoV-2 infection and the associated COVID-19 disease. To date, the anti-inflammatory drug dexamethasone and (to a lesser extent) the RNA-polymerase inhibitor remdesivir have been shown to be effective in reducing mortality and patient time to recovery, respectively, in patients. Here, we report the results of a phenotypic screening campaign within an EU-funded project (H2020-EXSCALATE4COV) aimed at extending the repertoire of anti-COVID therapeutics through repurposing of available compounds and highlighting compounds with new mechanisms of action against viral infection. We screened 8702 molecules from different repurposing libraries, to reveal 110 compounds with an anti-cytopathic IC50 < 20 µM. From this group, 18 with a safety index greater than 2 are also marketed drugs, making them suitable for further study as potential therapies against COVID-19. Our result supports the idea that a systematic approach to repurposing is a valid strategy to accelerate the necessary drug discovery process.

Reference

Journal : ACS Med Chem Lett

Title : New Dual CK2/HDAC1 Inhibitors with Nanomolar Inhibitory Activity against Both Enzymes.

PubMed ID : 32435375

DOI : 10.1021/acsmedchemlett.9b00561

Year : 2020

Volume : 11

Issue : 5

First Page : 713

Last Page : 719

Authors : Rangasamy L, Ortín I, Zapico JM, Coderch C, Ramos A, de Pascual-Teresa B.

Abstract : Four potent CK2 inhibitors derived from CX-4945 are described. They also provided nanomolar activity against HDAC1, therefore having promising utility as dual-target agents for cancer. The linker length between the hydroxamic acid and the CX-4945 scaffold plays an important role in dictating balanced activity against the targeted enzymes. The seven-carbon linker (compound 15c) was optimal for inhibition of both CK2 and HDAC1. Remarkably, 15c showed 3.0 and 3.5 times higher inhibitory activity than the reference compounds CX-4945 (against CK2) and SAHA (against HDAC1), respectively. Compound 15c exhibited micromolar activity in cell-based cytotoxic assays against multiple cell lines.

Reference

Journal : J Med Chem

Title : Thirty Years of HDAC Inhibitors: 2020 Insight and Hindsight.

PubMed ID : 32608981

DOI : 10.1021/acs.jmedchem.0c00830

Year : 2020

Volume : 63

Issue : 21.0

First Page : 12460

Last Page : 12484

Authors : Ho TCS,Chan AHY,Ganesan A

Abstract : It is now 30 years since the first report of a potent zinc-dependent histone deacetylase (HDAC) inhibitor appeared. Since then, five HDAC inhibitors have received regulatory approval for cancer chemotherapy while many others are in clinical development for oncology as well as other therapeutic indications. This Perspective reviews the biological and medicinal chemistry advances over the past 3 decades with an emphasis on the design of selective inhibitors that discriminate between the 11 human HDAC isoforms.

Assay Description	Organism	Bioactivity
Inhibition of HDAC3 (unknown origin)	Homo sapiens	130.0 nM
Antiviral activity determined as inhibition of SARS-CoV-2 induced cytotoxicity of Caco-2 cells at 10 uM after 48 hours by high content imaging	Homo sapiens	6.71 %
SARS-CoV-2 3CL-Pro protease inhibition percentage at 20µM by FRET kind of response from peptide substrate	Severe acute respiratory syndrome coronavirus 2	9.464 %
Antiviral activity determined as inhibition of SARS-CoV-2 induced cytotoxicity of VERO-6 cells at 10 uM after 48 hours exposure to 0.01 MOI SARS CoV-2 virus by high content imaging	Chlorocebus sabaeus	2.9 %	Antiviral activity determined as inhibition of SARS-CoV-2 induced cytotoxicity of VERO-6 cells at 10 uM after 48 hours exposure to 0.01 MOI SARS CoV-2 virus by high content imaging	Chlorocebus sabaeus	2.9 %
Inhibition of KDM1A/LSD1 (unknown origin)	Homo sapiens	600.0 nM
Inhibition of HDAC3 (unknown origin) using p53 residues (379 to 382)(RHKK(Ac)-AMC) as substrate by fluorescent method	Homo sapiens	600.0 nM

Cross References

Resources	Reference
ChEMBL	CHEMBL4283683
DrugBank	DB13101
FDA SRS	264ARM7UXX
PubChem	15985904
SureChEMBL	SCHEMBL1613939
ZINC	ZINC000034851244

CONTENTS

Structure
Chemical and Physical Properties