Biarylsulfonamide CCR9 inhibitors for inflammatory bowel disease

Inflammatory bowel disease, including Crohn’s disease and ulcerative colitis, affects millions of people worldwide. CCR9 has been shown to be a key chemokine receptor mediating the local inflammatory responses in the GI tract. The CCR9 inhibitor Vercirnon advanced to phase 3 clinical trials, but carries several liabilities which we sought to improve.

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