Identification of a Nonbasic, Nitrile-Containing Cathepsin K Inhibitor (MK-1256) that is Efficacious in a Monkey Model of Osteoporosis
作者:Jöel Robichaud、W. Cameron Black、Michel Thérien、Julie Paquet、Renata M. Oballa、Christopher I. Bayly、Daniel J. McKay、Qingping Wang、Elise Isabel、Serge Léger、Christophe Mellon、Donald B. Kimmel、Gregg Wesolowski、M. David Percival、Fréderic Massé、Sylvie Desmarais、Jean-Pierre Falgueyret、Sheldon N. Crane
DOI:10.1021/jm800610j
日期:2008.10.23
nonbasic, potent, and highly selective, nitrile-containing cathepsin K (Cat K) inhibitors that are built on our previously identified cyclohexanecarboxamide core structure. Subsequent to our initial investigations, we have found that incorporation of five-membered heterocycles as P2-P3 linkers allowed for the introduction of a methyl sulfone P3-substitutent that was not tolerated in inhibitors containing
在本文中,我们报告了基于我们先前确定的环己烷甲酰胺核心结构的非碱性,强效和高选择性,含腈的组织蛋白酶K(Cat K)抑制剂的鉴定。在我们的初步研究之后,我们发现引入五元杂环作为P2-P3连接基可以引入甲基砜P3-取代基,而该甲基砜P3-取代基在含有六元芳族P2-P3连接基的抑制剂中是不可接受的。P3中五元N-甲基吡唑连接基和甲基砜的组合产生了亚纳摩尔型Cat K抑制剂,在我们的功能性骨吸收试验中,其位移最小(<10倍)。通过引入2,2,2-三氟乙基取代基可以解决由于N-甲基吡唑的代谢脱甲基而引起的问题。