pyrotinib   Click here for help

GtoPdb Ligand ID: 9662

Synonyms: Airuini® | compound 12 [PMID: 28115222] | SHR-1258 | SHR1258
Approved drug
pyrotinib is an approved drug (China (2018))
Compound class: Synthetic organic
Comment: Pyrotinib (SHR1258) is an orally administered, irreversible inhibitor of the tyrosine kinase activities of the EGFR (HER1), HER2 and HER4 [1-2]. It is claimed as example 5 in patent US20120165352 [3].
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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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Click here for structure editor
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 7
Hydrogen bond donors 2
Rotatable bonds 11
Topological polar surface area 112.4
Molecular weight 582.21
XLogP 4.47
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 CCOc1cc2ncc(c(c2cc1NC(=O)C=CC1CCCN1C)Nc1ccc(c(c1)Cl)OCc1ccccn1)C#N
Isomeric SMILES CCOc1cc2ncc(c(c2cc1NC(=O)/C=C/[C@H]1CCCN1C)Nc1ccc(c(c1)Cl)OCc1ccccn1)C#N
InChI InChI=1S/C32H31ClN6O3/c1-3-41-30-17-27-25(16-28(30)38-31(40)12-10-24-8-6-14-39(24)2)32(21(18-34)19-36-27)37-22-9-11-29(26(33)15-22)42-20-23-7-4-5-13-35-23/h4-5,7,9-13,15-17,19,24H,3,6,8,14,20H2,1-2H3,(H,36,37)(H,38,40)/b12-10+/t24-/m1/s1
InChI Key SADXACCFNXBCFY-IYNHSRRRSA-N
No information available.
Summary of Clinical Use Click here for help
Pyrotinib is being evaluated in clinical trials for efficacy in HER2-positive solid tumours, including metastatic breast cancer, gastric cancer, or other solid tumours that have no targeted agent as standard of care. Results from a Phase 1 study (NCT01937689) in patients with metastatic breast cancer are reported by Ma et al. (2017), in which encouraging antitumour activity in these patients was detected [2]. Pyrotinib was approved for use in China in 2018, indicated for breast cancer.
Clinical Trials
Clinical Trial ID Title Type Source Comment References
NCT01937689 Study of Pyrotinib in Patients With Human Epidermalgrowth Factor Receptor 2 (HER2) Positive Advanced Breast Cancer Phase 1 Interventional Jiangsu HengRui Medicine Co., Ltd.
NCT02500199 Phase I Study of Pyrotinib in Patients With HER2-positive Solid Tumors Phase 1 Interventional Hengrui Therapeutics, Inc.
Pharmacokinetics Click here for help
Biotransformation/Metabolism
Principally metabolised by CYP3A4 (> 75% metabolised in an in vitro liver microsomal stability assay), with a minor contribution by CYP3A5 [1].