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Cited by 300

The DOI matches its Crossref record; 17 of the 17 references it cites were found in a registry or an index.

Revisiting the General Solubility Equation: In Silico Prediction of Aqueous Solubility Incorporating the Effect of Topographical Polar Surface Area

Ali, Jogoth, Camilleri, Patrick, Brown, Marc B., Hutt, Andrew J., Kirton, Stewart B.·2012·Journal of Chemical Information and Modeling

Abstract

The General Solubility Equation (GSE) is a QSPR model based on the melting point and log P of a chemical substance. It is used to predict the aqueous solubility of nonionizable chemical compounds. However, its reliance on experimentally derived descriptors, particularly melting point, limits its applicability to virtual compounds. The studies presented show that the GSE is able to predict, to within 1 log unit, the experimental aqueous solubility (log S) for 81% of the compounds in a data set of 1265 diverse chemical structures (-8.48 < log S < 1.58). However, the predictive ability of the GSE is reduced to 75% when applied to a subset of the data (1160 compounds -6.00 < log S < 0.00), which discounts those compounds occupying the sparsely populated regions of data space. This highlights how sparsely populated extremities of data sets can significantly skew results for linear regression-based models. Replacing the melting point descriptor of the GSE with a descriptor which accounts for topographical polar surface area (TPSA) produces a model of comparable quality to the GSE (the solubility of 81% of compounds in the full data set predicted accurately). As such, we propose an alternative simple model for predicting aqueous solubility which replaces the melting point descriptor of the GSE with TPSA and hence can be applied to virtual compounds. In addition, incorporating TPSA into the GSE in addition to log P and melting point gives a three descriptor model that improves accurate prediction of aqueous solubility over the GSE by 5.1% for the full and 6.6% for the reduced data set, respectively.

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Metadata

Authors
Ali, J., Camilleri, P., Brown, M. B., Hutt, A. J., & Kirton, S. B.
Venue
Journal of Chemical Information and Modeling
Published
2012-01-13
Volume
52
Issue
2
Pages
420-428
ISSN
  • 1549-9596 (ISSN-L)
  • 1549-960X
OpenAlex
W2144877918
Cited by
300
References
17
FWCI
2.09
Type
journal article
Language
en
Open access
closed

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