Isatin replacements applied to the highly selective, muscarinic M1 PAM ML137: continued optimization of an MLPCN probe molecule

Bruce J Melancon, Michael S Poslusney, Patrick R Gentry, James C Tarr, Douglas J Sheffler, Margrith E Mattmann, Thomas M Bridges, Thomas J Utley, J Scott Daniels, Colleen M Niswender, P Jeffrey Conn, Craig W Lindsley, Michael R Wood