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Smallest Maximum Intramolecular Distance: A Novel Method to Mitigate Pregnane Xenobiotic Receptor Activation
Michael J Bower1, Alex M Aronov1, Thomas Cleveland1
1Vertex Pharmaceuticals, 50 Northern Avenue, Boston, Massachusetts 02210, United States.
Abstract:
Induction of cytochrome P450 isoform 3A4 via activation of the pregnane xenobiotic receptor (PXR) is a concern for pharmaceutical discovery and development, as it can lead to drug-drug interactions. We present a novel molecular descriptor, the smallest maximum intramolecular distance (SMID), which is correlated with PXR activation, and a method for using the SMID descriptor to guide discovery chemists in modifying lead compounds to decrease PXR activation.
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