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Photooxygenation of an Amino-thienopyridone Yields a More Potent PTP4A3 Inhibitor

Overview
Journal Org Biomol Chem
Specialties Biochemistry
Chemistry
Date 2016 Jun 14
PMID 27291491
Citations 22
Authors
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Abstract

The phosphatase PTP4A3 is an attractive anticancer target, but knowledge of its exact role in cells remains incomplete. A potent, structurally novel inhibitor of the PTP4A family was obtained by photooxygenation of a less active, electron-rich thienopyridone (1). Iminothienopyridinedione 13 displays increased solution stability and is readily obtained by two new synthetic routes that converge in the preparation of 1. The late-stage photooxygenation of 1 to give 13 in high yield highlights the potential of this reaction to modify the structure and properties of a biological lead compound and generate value for expanding the scope of an SAR investigation. Analog 13 should become a valuable tool for further exploration of the role of PTP4A3 in tumor progression.

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