dirozalkib   Click here for help

GtoPdb Ligand ID: 13811

Synonyms: compound 3 [WO2016050171A1] | XZP-3621 | XZP3621
Compound class: Synthetic organic
Comment: The chemical structure for dirozalkib was derived from WHO proposed INN list 132 (Feb 2025), in which it is listed as an anaplastic lymphoma kinase (ALK) inhibitor, with antineoplastic potential. The structure is claimed in Xuanzhu Biopharmaceutical (a subsidiary of Sihuan Pharmaceutical) patent WO2016050171A1 [1]. It is plausible that dirozalkib is the INN for Sihuan's clinical lead XZP-3621, which is in fact a dual-target ALK/ROS1 tyrosine kinase inhibitor. XZP-3621 is proposed to tackle ALK resistance mutations in tumours, that are associated with other ALK inhibitors.
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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 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 9
Hydrogen bond donors 3
Rotatable bonds 7
Topological polar surface area 121.79
Molecular weight 558.09
XLogP 2.53
No. Lipinski's rules broken 1

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 CC(C)S(=O)(=O)C1=C(C=CC=C1)NC2=C(C=NC(=N2)NC3=CC(=C(C4CCNCC4)C5=C3OCCO5)C)Cl
Isomeric SMILES CC1=CC(=C2C(=C1C3CCNCC3)OCCO2)NC4=NC=C(C(=N4)NC5=CC=CC=C5S(=O)(=O)C(C)C)Cl
InChI InChI=1S/C27H32ClN5O4S/c1-16(2)38(34,35)22-7-5-4-6-20(22)31-26-19(28)15-30-27(33-26)32-21-14-17(3)23(18-8-10-29-11-9-18)25-24(21)36-12-13-37-25/h4-7,14-16,18,29H,8-13H2,1-3H3,(H2,30,31,32,33)
InChI Key ABKQZNVWMCRCGQ-UHFFFAOYSA-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/)
No information available.
Summary of Clinical Use Click here for help
XZP-3621 is a clinical candidate for the treatment of advanced ALK- or ROS1-rearranged non-small cell lung cancers.
Clinical Trials
Clinical Trial ID Title Type Source Comment References
NCT05204628 A Study to Evaluate and Compare the Efficacy and Safety of XZP-3621 Versus Crizotinib Phase 3 Interventional Xuanzhu Biopharmaceutical Co., Ltd.
NCT05482087 A Study of XZP-3621 in Chinese Patients With ALK Positive NSCLC Phase 2 Interventional Xuanzhu Biopharmaceutical Co., Ltd.