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ID: ALA5214935

Journal: Bioorg Med Chem Lett

Title: Discovery of a potent M5 antagonist with improved clearance profile. Part 1: Piperidine amide-based antagonists.

Authors: Capstick RA, Whomble D, Orsi DL, Felts AS, Rodriguez AL, Vinson PN, Chang S, Blobaum AL, Niswender CM, Conn PJ, Jones CK, Lindsley CW, Han C.

Abstract: The lack of potent and selective tool compounds with pharmaceutically favorable properties limits the in vivo understanding of muscarinic acetylcholine receptor subtype 5 (M5) biology. Previously, we presented a highly potent and selective M5 antagonist VU6019650 with a suboptimal clearance profile as our second-generation tool compound. Herein, we disclose our ongoing efforts to generate next-generation M5 antagonists with improved clearance profiles. A mix and match approach between VU6019650 (lead) and VU0500325 (HTS hit) generated a piperidine amide-based novel M5 antagonist series. Several analogs within this series, including 29f, provided good on-target potency with improved clearance profiles, though room for improvement remains.

CiteXplore: 36113671

DOI: 10.1016/j.bmcl.2022.128988