Synthesis, SAR, and Series Evolution of Novel Oxadiazole-Containing 5-Lipoxygenase Activating Protein Inhibitors: Discovery of 2-[4-(3-{(<i>R</i>)-1-[4-(2-Amino-pyrimidin-5-yl)-phenyl]-1-cyclopropyl-ethyl}-[1,2,4]oxadiazol-5-yl)-pyrazol-1-yl]-<i>N</i>,<i>N</i>-dimethyl-acetamide (BI 665915)
作者:Hidenori Takahashi、Doris Riether、Alessandra Bartolozzi、Todd Bosanac、Valentina Berger、Ralph Binetti、John Broadwater、Zhidong Chen、Rebecca Crux、Stéphane De Lombaert、Rajvee Dave、Jonathon A. Dines、Tazmeen Fadra-Khan、Adam Flegg、Michael Garrigou、Ming-Hong Hao、John Huber、J. Matthew Hutzler、Steven Kerr、Adrian Kotey、Weimin Liu、Ho Yin Lo、Pui Leng Loke、Paige E. Mahaney、Tina M. Morwick、Spencer Napier、Alan Olague、Edward Pack、Anil K. Padyana、David S. Thomson、Heather Tye、Lifen Wu、Renee M. Zindell、Asitha Abeywardane、Thomas Simpson
DOI:10.1021/jm501185j
日期:2015.2.26
The synthesis, structure-activity relationship (SAR), and evolution of a novel series of oxadiazole-containing 5-lipoxygenase-activating protein (FLAP) inhibitors are described. The use of structure-guided drug design techniques provided compounds that demonstrated excellent FLAP binding potency (IC50 < 10 nM) and potent inhibition of LTB4 synthesis in human whole blood (IC50 < 100 nM). Optimization of binding and functional potencies, as well as physicochemical properties resulted in the identification of compound 69 (BI 665915) that demonstrated an excellent cross-species drug metabolism and pharmacokinetics (DMPK) profile and was predicted to have low human clearance. In addition, 69 was predicted to have a low risk for potential drug-drug interactions due to its cytochrome P450 3A4 profile. In a murine ex vivo whole blood study, 69 demonstrated a linear dose-exposure relationship and a dose-dependent inhibition of LTB4 production.