Identification of nicotinamide phosphoribosyltransferase (NAMPT) inhibitors with no evidence of CYP3A4 time-dependent inhibition and improved aqueous solubility
摘要:
Herein we report the optimization efforts to ameliorate the potent CYP3A4 time-dependent inhibition (TDI) and low aqueous solubility exhibited by a previously identified lead compound from our NAMPT inhibitor program (1, GNE-617). Metabolite identification studies pinpointed the imidazopyridine moiety present in 1 as the likely source of the TDI signal, and replacement with other bicyclic systems was found to reduce or eliminate the TDI finding. A strategy of reducing the number of aromatic rings and/or lowering cLogD(7.4) was then employed to significantly improve aqueous solubility. These efforts culminated in the discovery of 42, a compound with no evidence of TDI, improved aqueous solubility, and robust efficacy in tumor xenograft studies. (C) 2014 Elsevier Ltd. All rights reserved.
The present invention relates to certain cyclopropyl amide compounds, pharmaceutical compositions comprising such compounds, and methods of treating cancer, including leukemias and solid tumors, inflammatory diseases, osteoporosis, atherosclerosis, irritable bowel syndrome, and other diseases and medical conditions, with such compounds and pharmaceutical compositions. The present invention also relates to certain cyclopropyl amide compounds for use in inhibiting nicotinamide phosphoribosyltransferase ("NAMPT").
Identification of nicotinamide phosphoribosyltransferase (NAMPT) inhibitors with no evidence of CYP3A4 time-dependent inhibition and improved aqueous solubility
作者:Mark Zak、Bianca M. Liederer、Deepak Sampath、Po-wai Yuen、Kenneth W. Bair、Timm Baumeister、Alexandre J. Buckmelter、Karl H. Clodfelter、Eric Cheng、Lisa Crocker、Bang Fu、Bingsong Han、Guangkun Li、Yen-Ching Ho、Jian Lin、Xiongcai Liu、Justin Ly、Thomas O’Brien、Dominic J. Reynolds、Nicholas Skelton、Chase C. Smith、Suzanne Tay、Weiru Wang、Zhongguo Wang、Yang Xiao、Lei Zhang、Guiling Zhao、Xiaozhang Zheng、Peter S. Dragovich
DOI:10.1016/j.bmcl.2014.12.026
日期:2015.2
Herein we report the optimization efforts to ameliorate the potent CYP3A4 time-dependent inhibition (TDI) and low aqueous solubility exhibited by a previously identified lead compound from our NAMPT inhibitor program (1, GNE-617). Metabolite identification studies pinpointed the imidazopyridine moiety present in 1 as the likely source of the TDI signal, and replacement with other bicyclic systems was found to reduce or eliminate the TDI finding. A strategy of reducing the number of aromatic rings and/or lowering cLogD(7.4) was then employed to significantly improve aqueous solubility. These efforts culminated in the discovery of 42, a compound with no evidence of TDI, improved aqueous solubility, and robust efficacy in tumor xenograft studies. (C) 2014 Elsevier Ltd. All rights reserved.