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Updated: Aug 29, 2026

Identifying Caspases and their Motifs that Cleave Proteins During Influenza A Virus Infection
Published on: July 21, 2022
The design and synthesis of sulfonamides as caspase-1 inhibitors
William G Harter1, Hans Albrect, Kenneth Brady
1Chemistry Department, Pfizer Global Research and Development, 2800 Plymouth Rd, Ann Arbor, MI 48105, USA. william.harter@pfizer.com
Abstract:
A series of sulfonamides (1) has been prepared as inhibitors of interleukin-1beta converting enzyme (ICE), also known as caspase 1. These compounds were designed to improve potency by rigidifying the enzyme bound molecule through an intramolecular hydrogen bond. An X-ray crystal structure of a representative member of this series bound to the active site of ICE, confirms the presence of the hydrogen bonding interaction.
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