Structure–activity relationships of 1-alkyl-5-(3,4-dichlorophenyl)-5-{2-[3-(substituted)-1-azetidinyl]-ethyl}-2-piperidones. Part 2: Improving oral absorption
作者:Donald S. Middleton、A. Roderick MacKenzie、Sandra D. Newman、Martin Corless、Andrew Warren、Allan P. Marchington、Barry Jones
DOI:10.1016/j.bmcl.2005.05.134
日期:2005.9
A series of piperidone analogues of 1b-q, seeking replacements for the polar sulfamide moiety in clinical candidate UK-224,671- 1a, possessing reduced H-bonding potential as a strategy to improve oral absorption, were prepared. These studies led to the successful identification of In, which demonstrated equivalent pharmacology and metabolic stability to la, and greatly improved oral absorption as assessed in rat PK studies. (c) 2005 Elsevier Ltd. All rights reserved.