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cΔlog kwIAM: can we afford estimation of small molecules’ blood-brain barrier passage based upon in silico phospholipophilicity?

Grumetto, Lucia; Russo, Giacomo


Lucia Grumetto


56 compounds, whose log BB values were known from the scientific literature, were considered and their phospholipophilicity values were calculated in silico. These values, along with either experimentally determined or calculated lipophilicity values, were used to extract cΔ/Δ'log k w IAM parameters. cΔ/Δ'log k w IAM values were found inversely related to data of blood-brain barrier passage, especially in the <-0.20 log BB range and on the IAM.PC.DD2 phase (r 2 = 0.79). In multiple linear regression, satisfactory statistic models (r 2 (n-1) = 0.76), based on c/'log k w IAM.MG along with other in silico calculated descriptors, were achieved. This method brings the potential to be applied, along with other methodologies, to filter out solutes whose BBB permeation is foreseen to be substandard, thus allowing pharmaceutical companies/research institutes to focus on candidates that are more likely to concentrate in the brain.

Journal Article Type Article
Acceptance Date Nov 27, 2021
Online Publication Date Dec 15, 2021
Publication Date 2021
Deposit Date Dec 17, 2021
Publicly Available Date Dec 17, 2021
Journal ADMET and DMPK
Print ISSN 1848-7718
Publisher International Association of Physical Chemists
Peer Reviewed Peer Reviewed
Volume 9
Issue 4
Pages 267-281
Keywords immobilized artificial membrane; biochromatography; blood brain barrier; brain targeting; phospholipophilicity
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