rilapladib   Click here for help

GtoPdb Ligand ID: 7376

Synonyms: SB 659032
Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: Lipoprotein-associated phospholipase A2 (Lp-PLA2, PLA2-G7) inhibitors such as rilapladib and darapladib have been evaluated in clinical trials: darapladib for coronary heart disease, and rilapladib for Alzheimer's disease. Compounds of different chemotypes are being explored as tools to further optimise the pharmacological modulation of PLA2-G7 as a target for clinical intervention- see also (S)-23 [PMID: 27933945] (tool compound).
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2D Structure
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Physico-chemical Properties
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Hydrogen bond acceptors 5
Hydrogen bond donors 0
Rotatable bonds 14
Topological polar surface area 80.08
Molecular weight 735.26
XLogP 10.02
No. Lipinski's rules broken 2
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Canonical SMILES COCCN1CCC(CC1)N(C(=O)Cn1c(SCc2cccc(c2F)F)cc(=O)c2c1cccc2)Cc1ccc(cc1)c1ccc(cc1)C(F)(F)F
Isomeric SMILES COCCN1CCC(CC1)N(C(=O)Cn1c(SCc2cccc(c2F)F)cc(=O)c2c1cccc2)Cc1ccc(cc1)c1ccc(cc1)C(F)(F)F
InChI InChI=1S/C40H38F5N3O3S/c1-51-22-21-46-19-17-32(18-20-46)47(24-27-9-11-28(12-10-27)29-13-15-31(16-14-29)40(43,44)45)37(50)25-48-35-8-3-2-6-33(35)36(49)23-38(48)52-26-30-5-4-7-34(41)39(30)42/h2-16,23,32H,17-22,24-26H2,1H3
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Summary of Clinical Use Click here for help
The potential for this compound to treat Alzheimer's disease has been assessed in a Phase 2a study (NCT01428453).
Mechanism Of Action and Pharmacodynamic Effects Click here for help
Lp-PLA2 is a circulating enzyme secreted by monocytes and generates proinflammatory and oxidative mediators such as lysophosphatidylcholine and oxidized fatty acids, which promote development of atherosclerotic lesions. Lp-PLA2 is considered a risk factor for cardiovascular disease and vascular inflammation. Dysregulated lipid metabolism has been implicated in stroke and dementia. Some research suggests that Lp-PLA2 may be a risk for dementia [2], but this is not the conclusion of a different study which does not find this disease association [1].