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Issue 31, 2013
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The computation of lipophilicities of 64Cu PET systems based on a novel approach for fluctuating charges

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Abstract

A QSPR scheme for the computation of lipophilicities of 64Cu complexes was developed with a training set of 24 tetraazamacrocylic and bispidine-based CuII compounds and their experimentally available 1-octanol–water distribution coefficients. A minimum number of physically meaningful parameters were used in the scheme, and these are primarily based on data available from molecular mechanics calculations, using an established force field for CuII complexes and a recently developed scheme for the calculation of fluctuating atomic charges. The developed model was also applied to an independent validation set and was found to accurately predict distribution coefficients of potential 64Cu PET (positron emission tomography) systems. A possible next step would be the development of a QSAR-based biodistribution model to track the uptake of imaging agents in different organs and tissues of the body. It is expected that such simple, empirical models of lipophilicity and biodistribution will be very useful in the design and virtual screening of positron emission tomography (PET) imaging agents.

Graphical abstract: The computation of lipophilicities of 64Cu PET systems based on a novel approach for fluctuating charges

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Supplementary files

Article information


Submitted
22 Apr 2013
Accepted
07 Jun 2013
First published
07 Jun 2013

Dalton Trans., 2013,42, 11066-11073
Article type
Paper

The computation of lipophilicities of 64Cu PET systems based on a novel approach for fluctuating charges

P. Comba, B. Martin, A. Sanyal and H. Stephan, Dalton Trans., 2013, 42, 11066
DOI: 10.1039/C3DT51049B

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