Jul-Aug 1989 Alkyl Substituted 3-PPP Derivatives. Synthesis and Biological Investigation Haile Tecle*, Stephen С Bergmeier, Lawrence D. Wise, Fred M. Hershenson, Linda L. Coughenour and Thomas G. Heffner Parke-Davis Pharmaceutical Research Division, Warner-Lambert Company, Ann Arbor, MI 48105-2430 Received January 19, 1989 Synthesis of alkyl substituted derivatives of 33-piperidinyl)phenol (3-PPP), 2-8, was carried out in an attempt ...