Design and synthesis of piperidine farnesyltransferase inhibitors with reduced glucuronidation potential

The design and synthesis of a novel piperidine series of farnesyltransferase (FTase) inhibitors with reduced potential for metabolic glucuronidation are described. The various substitution and exchange of the phenyl group at the C-2 position of the previously described 2-(4-hydroxy)phenyl-3-nitropiperidine 1a (FTase IC50 = 5.4 nM) resulted in metabolically stable compounds with potent FTase inhibition (14a IC50 = 4.3 nM, 20a IC50 = 3.0 nM, and 50a IC50 = 16 nM). Molecular modeling studies of these compounds complexed with FTasc and farnesyl pyrophosphate are also described. (c) 2006 Elsevier Ltd. All rights reserved.