puquitinib   Click here for help

GtoPdb Ligand ID: 9928

Synonyms: XC-302 | XC302
Compound class: Synthetic organic
Comment: Puquitinib is an orally active, PI3 kinase inhibitor that induces autophagy by inhibiting the PI3K/AKT/mTOR signaling pathway. Puquitinib is selective for p110δ relative to other PI3K class I enzymes. It is a clinical lead developed for antitumour activity [3].
Puquitinib is a 'pseudo' INN, that takes the form of an INN, but has not been submitted to the World Health Organisation for ratification.
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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
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 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.

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Hydrogen bond acceptors 6
Hydrogen bond donors 3
Rotatable bonds 4
Topological polar surface area 91.41
Molecular weight 317.14
XLogP 2.71
No. Lipinski's rules broken 0
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.

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Canonical SMILES c1cnc2c(c1)cc(cc2)Nc1nc(NC2CC2)c2c(n1)nc[nH]2
Isomeric SMILES c1cnc2c(c1)cc(cc2)Nc1nc(NC2CC2)c2c(n1)nc[nH]2
InChI InChI=1S/C17H15N7/c1-2-10-8-12(5-6-13(10)18-7-1)22-17-23-15-14(19-9-20-15)16(24-17)21-11-3-4-11/h1-2,5-9,11H,3-4H2,(H3,19,20,21,22,23,24)
InChI Key QUTFBURLXCODBH-UHFFFAOYSA-N
No information available.
Summary of Clinical Use Click here for help
Puquitinib was found to be safe, with a promising tolerability and efficacy profile against relapsed/refractory non-Hodgkin's lymphoma in phase 1 clinical trial [4]. It is currently undergoing phase 2 clinical trials in China [3].
Mechanism Of Action and Pharmacodynamic Effects Click here for help
PI3Kδ and its downstream target, AKT, are frequently activated in leukemic blasts from patients with B‐cell malignancies or acute myeloid leukemia (AML), and selective inhibitors of the δ isoform show efficacy in certain B-cell malignancies [1-2]. PI3Kδ inhibition is suggested to release leukemia and lymphoma cells from their protective niche by disrupting signals from the lymphoid microenvironment [2].