Identification of novel azaindazole CCR1 antagonist clinical candidates.

Bioorg Med Chem Lett

Immunology & Respiratory Disease Research Department, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, PO Box 368, Ridgefield, CT 06877-0368, USA.

Published: February 2019

Exploring various cyclization strategies, using a submicromolar pyrazole HTS screening hit 6 as a starting point, a novel indazole based CCR1 antagonist core was discovered. This report presents the design and SAR of CCR1 indazole and azaindazole antagonists leading to the identification of three development compounds, including 19e that was advanced to early clinical trials.

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http://dx.doi.org/10.1016/j.bmcl.2018.12.024DOI Listing

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