Identification of nicotinamide phosphoribosyltransferase (NAMPT) inhibitors with no evidence of CYP3A4 time-dependent inhibition and improved aqueous solubility

[Display omitted] 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 im...

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Veröffentlicht in:Bioorganic & medicinal chemistry letters 2015-02, Vol.25 (3), p.529-541
Hauptverfasser: Zak, Mark, Liederer, Bianca M., Sampath, Deepak, Yuen, Po-wai, Bair, Kenneth W., Baumeister, Timm, Buckmelter, Alexandre J., Clodfelter, Karl H., Cheng, Eric, Crocker, Lisa, Fu, Bang, Han, Bingsong, Li, Guangkun, Ho, Yen-Ching, Lin, Jian, Liu, Xiongcai, Ly, Justin, O’Brien, Thomas, Reynolds, Dominic J., Skelton, Nicholas, Smith, Chase C., Tay, Suzanne, Wang, Weiru, Wang, Zhongguo, Xiao, Yang, Zhang, Lei, Zhao, Guiling, Zheng, Xiaozhang, Dragovich, Peter S.
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container_end_page 541
container_issue 3
container_start_page 529
container_title Bioorganic & medicinal chemistry letters
container_volume 25
creator Zak, Mark
Liederer, Bianca M.
Sampath, Deepak
Yuen, Po-wai
Bair, Kenneth W.
Baumeister, Timm
Buckmelter, Alexandre J.
Clodfelter, Karl H.
Cheng, Eric
Crocker, Lisa
Fu, Bang
Han, Bingsong
Li, Guangkun
Ho, Yen-Ching
Lin, Jian
Liu, Xiongcai
Ly, Justin
O’Brien, Thomas
Reynolds, Dominic J.
Skelton, Nicholas
Smith, Chase C.
Tay, Suzanne
Wang, Weiru
Wang, Zhongguo
Xiao, Yang
Zhang, Lei
Zhao, Guiling
Zheng, Xiaozhang
Dragovich, Peter S.
description [Display omitted] 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 cLogD7.4 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.
doi_str_mv 10.1016/j.bmcl.2014.12.026
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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 cLogD7.4 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.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>25556090</pmid><doi>10.1016/j.bmcl.2014.12.026</doi><tpages>13</tpages></addata></record>
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subjects Animals
Aqueous solubility
Binding Sites
Cell Line, Tumor
Cell Membrane Permeability - drug effects
Cell Proliferation - drug effects
Crystallography, X-Ray
CYP TDI
Cytochrome P-450 CYP3A - chemistry
Cytochrome P-450 CYP3A - metabolism
Cytochrome P-450 CYP3A Inhibitors - chemistry
Cytochrome P-450 CYP3A Inhibitors - pharmacokinetics
Cytochrome P-450 CYP3A Inhibitors - toxicity
Cytochrome P450 time-dependent inhibition
Dogs
Enzyme Inhibitors - chemistry
Enzyme Inhibitors - pharmacokinetics
Enzyme Inhibitors - therapeutic use
Female
Half-Life
Humans
Kinetics
Madin Darby Canine Kidney Cells
Mice
Mice, Nude
Molecular Dynamics Simulation
NAMPT
Neoplasms - drug therapy
Neoplasms - pathology
Nicotinamide phosphoribosyltransferase
Nicotinamide Phosphoribosyltransferase - antagonists & inhibitors
Nicotinamide Phosphoribosyltransferase - metabolism
Protein Binding
Protein Structure, Tertiary
Pyrimidines - chemistry
Pyrimidines - therapeutic use
Pyrimidines - toxicity
Solubility
Structure-Activity Relationship
Thermodynamics
Transplantation, Heterologous
Tumor metabolism
Water - chemistry
title Identification of nicotinamide phosphoribosyltransferase (NAMPT) inhibitors with no evidence of CYP3A4 time-dependent inhibition and improved aqueous solubility
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