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PI3Kα/δ degrader D5   Click here for help

GtoPdb Ligand ID: 14422

Compound class: Synthetic organic
Comment: This is a heterobifunctional cereblon-binding PROTAC degrader that is selective for phosphoinositide 3-kinase (PI3K) isoforms α and δ [1]. It exploits copanlisib as the PI3K-targeting warhead. D5 is proposed for therapeutic potential in PIK3CA mutant breast cancers (with the oncogenic H1047R mutation for example).
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 19
Hydrogen bond donors 4
Rotatable bonds 21
Topological polar surface area 228.32
Molecular weight 877
XLogP -0.1
No. Lipinski's rules broken 3

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 COC1=C2C(=CC=C1OCCCN3CCN(CCCCCCCCC(=O)NC4=C5C(=CC=C4)CN(C6CCC(=O)NC6=O)C5=O)CC3)C7=NCCN7C(=N2)NC(=O)C8=CN=C(N)N=C8
Isomeric SMILES COC1=C2C(C3=NCCN3C(NC(C4=CN=C(N)N=C4)=O)=N2)=CC=C1OCCCN5CCN(CCCCCCCCC(NC6=C7C(N(C8CCC(NC8=O)=O)CC7=CC=C6)=O)=O)CC5
InChI InChI=1S/C45H56N12O7/c1-63-39-34(15-13-31-38(39)52-45(56-20-17-47-40(31)56)53-41(60)30-26-48-44(46)49-27-30)64-25-9-19-55-23-21-54(22-24-55)18-7-5-3-2-4-6-12-35(58)50-32-11-8-10-29-28-57(43(62)37(29)32)33-14-16-36(59)51-42(33)61/h8,10-11,13,15,26-27,33H,2-7,9,12,14,16-25,28H2,1H3,(H,50,58)(H2,46,48,49)(H,51,59,61)(H,52,53,60)
InChI Key NDVXFPTYOZTPTI-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/)
Bioactivity Comments
DC50 for PI3Kα is 0.05 nM, whereas the DC50 values for the β and γ isozymes are >1 μM.