SAR studies of 4-acyl-1,6-dialkylpiperazin-2-one arenavirus cell entry inhibitors

Autor: Eric Brown, Vidyasagar Reddy Gantla, Landon R. Whitby, Ken McCormack, Joanne York, Dale L. Boger, Plewe Michael Bruno, Birte Kalveram, Jack H. Nunberg, Greg Henkel, Alexander N. Freiberg, Nadezda V. Sokolova, Shibani Naik, Lihong Zhang
Rok vydání: 2019
Předmět:
Zdroj: Bioorg Med Chem Lett
ISSN: 1464-3405
Popis: Old World (Africa) and New World (South America) arenaviruses are associated with human hemorrhagic fevers. Efforts to develop small molecule therapeutics have yielded several chemical series including the 4-acyl-1,6-dialkylpiperazin-2-ones. Herein, we describe an extensive exploration of this chemotype. In initial Phase I studies, R(1) and R(4) scanning libraries were assayed to identify potent substituents against Old World (Lassa) virus. In subsequent Phase II studies, R(6) substituents and iterative R(1), R(4) and R(6) substituent combinations were evaluated to obtain compounds with improved Lassa and New World (Machupo, Junin, and Tacaribe) arenavirus inhibitory activity, in vitro human liver microsome metabolic stability and aqueous solubility.
Databáze: OpenAIRE