(+)-SJ733   Click here for help

GtoPdb Ligand ID: 9723

Synonyms: (+)-SJ000557733 | (+)-SJ557733
Antimalarial Ligand
Compound class: Synthetic organic
Comment: (+)-SJ733 is the optimized lead for the dihydroisoquinolones (DHIQ), a novel chemotype with antimalarial activity [2].
The (+)-enantiomer, shown here, has a significantly higher antimalarial potency [2].

The Malaria tab on this ligand page provides additional curator comments of relevance to the Guide to MALARIA PHARMACOLOGY.
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Ligand Activity Visualisation Charts

These are box plot that provide a unique visualisation, summarising all the activity data for a ligand taken from ChEMBL and GtoPdb across multiple targets and species. Click on a plot to see the median, interquartile range, low and high data points. A value of zero indicates that no data are available. A separate chart is created for each target, and where possible the algorithm tries to merge ChEMBL and GtoPdb targets by matching them on name and UniProt accession, for each available species. However, please note that inconsistency in naming of targets may lead to data for the same target being reported across multiple charts.

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View interactive charts of activity data across species

(+)-SJ733 is commercially available from our sponsors

2D Structure
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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.

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Physico-chemical Properties
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Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/). 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.

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Hydrogen bond acceptors 6
Hydrogen bond donors 1
Rotatable bonds 6
Topological polar surface area 86.09
Molecular weight 468.12
XLogP 3.8
No. Lipinski's rules broken 0

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
SMILES / InChI / InChIKey
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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.

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)

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Canonical SMILES N#Cc1cc(ccc1F)NC(=O)C1c2ccccc2C(=O)N(C1c1cccnc1)CC(F)(F)F
Isomeric SMILES N#Cc1cc(ccc1F)NC(=O)[C@H]1c2ccccc2C(=O)N([C@@H]1c1cccnc1)CC(F)(F)F
InChI InChI=1S/C24H16F4N4O2/c25-19-8-7-16(10-15(19)11-29)31-22(33)20-17-5-1-2-6-18(17)23(34)32(13-24(26,27)28)21(20)14-4-3-9-30-12-14/h1-10,12,20-21H,13H2,(H,31,33)/t20-,21+/m0/s1
InChI Key VKCPFWKTFZAOTO-LEWJYISDSA-N

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
Bioactivity Comments
The interaction table below provides data from an evaluation of asexual blood stage activity using a panel of culture-adapted P. falciparum strains, with no evidence of reduced potency against drug resistant strains. No significant change was observed in the potency (ED50) of (+)-SJ733 against different developmental forms of the asexual blood stage parasite. In addition, the compound demonstrates excellent efficacy in the SCID mouse model of P. falciparum malaria (ED90 of 1.9 mg/kg) and potent and efficacious transmission-blocking activity in a P. berghei mouse model (ED50 of 5 mg/kg) [2].
Whole organism assay data
Key to terms and symbols Click on species/strain names for details Click column headers to sort
MOA/likely target Sp. Assay description Type Action Value Parameter Concentration range (M) Reference
Plasmodium falciparum non-SERCA-type Ca2+ -transporting P-ATPase PfDd2

Plasmodium falciparum Dd2

P. falciparum strain Dd2 (PfDd2) is a clone derived from PfW2, following continuous culture in mefloquine. PfW2 was cloned from the Indochina III/CDC isolate, originally derived from a Laotian patient who failed chloroquine therapy.
PfDd2 can be obtained from the Malaria Research and Reference Reagent Resource Center (MR4) and is reported to be resistant to chloroquine, pyrimethamine and mefloquine.
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 Parasite growth inhibition assay - - 7.7 pEC50 - 2
⤷ pEC50 7.7 (EC50 2x10-8 M) SYBR Green I assay [2]
Lifecycle stages: Plasmodium asexual blood stage (erythrocytic merozoite, trophozoite, erythrocytic schizont)
Plasmodium falciparum non-SERCA-type Ca2+ -transporting P-ATPase Pf3D7

Plasmodium falciparum 3D7

P. falciparum strain 3D7 (Pf3D7) was derived from isolate NF54 by limiting dilution. The complete genome of Pf3D7 has been sequenced (GenBank: LN999946.1).
Pf3D7 can be obtained from the European Malaria Reagent Repository or the Malaria Research and Reference Reagent Resource Center (MR4) and is sensitive to a panel of antimalarial compounds including chloroquine and pyrimethamine.
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 Parasite growth inhibition assay - - 7.5 pEC50 - 2
⤷ pEC50 7.5 (EC50 3x10-8 M) SYBR Green I assay [2]
Lifecycle stages: Plasmodium asexual blood stage (erythrocytic merozoite, trophozoite, erythrocytic schizont)
Plasmodium falciparum non-SERCA-type Ca2+ -transporting P-ATPase PfK1

Plasmodium falciparum K1

P. falciparum strain K1 (PfK1) was isolated in Kanchanaburi, Thailand in 1979.
PfK1 can be obtained from the European Malaria Reagent Repository or the Malaria Research and Reference Reagent Resource Center (MR4) and is reported to be a multidrug-resistant strain.
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 Parasite growth inhibition assay - - 7.4 pEC50 - 2
⤷ pEC50 7.4 (EC50 4x10-8 M) SYBR Green I assay [2]
Lifecycle stages: Plasmodium asexual blood stage (erythrocytic merozoite, trophozoite, erythrocytic schizont)
Plasmodium falciparum non-SERCA-type Ca2+ -transporting P-ATPase PfV1/S

Plasmodium falciparum V1/S

P. falciparum strain V1/S (PfV1/S) is an in vitro culture-adapted clone of V1, that originated in Vietnam.
PfV1/S can be obtained from the Malaria Research and Reference Reagent Resource Center (MR4) and is reported to be resistant to chloroquine and quinine.
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 Parasite growth inhibition assay - - 7.2 pEC50 - 2
⤷ pEC50 7.2 (EC50 6x10-8 M) SYBR Green I assay [2]
Lifecycle stages: Plasmodium asexual blood stage (erythrocytic merozoite, trophozoite, erythrocytic schizont)