Synthesis and structure–activity relationships of novel IKK-β inhibitors. Part 3: Orally active anti-inflammatory agents
作者:Toshiki Murata、Mitsuyuki Shimada、Sachiko Sakakibara、Takashi Yoshino、Tsutomu Masuda、Takuya Shintani、Hiroki Sato、Yuji Koriyama、Keiko Fukushima、Noriko Nunami、Megumi Yamauchi、Kinji Fuchikami、Hiroshi Komura、Akihiko Watanabe、Karl B Ziegelbauer、Kevin B Bacon、Timothy B Lowinger
DOI:10.1016/j.bmcl.2004.05.041
日期:2004.8
A series of 2-amino-3-cyano-4-alkyl-6-(2-hydroxyphenyl)pyridine derivatives was synthesized and evaluated as IkappaB kinase beta (IKK-beta) inhibitors. Modification of a novel IKK-beta inhibitor 1 (IKK-beta IC50 = 1500 nM, Cell IC50 = 8000 nM) at the 4-phenyl ring and 6-phenol group on the pyridine core ring resulted in a marked increased in biological activities. An optimized compound, 2-amino-6-[2-(cyclopropylmethoxy)-6-hydroxyphenyl]-4-piperidin-4-yl nicotinonitrile, exhibited excellent in vitro profiles (IKK-beta IC50 = 8.5 nM, Cell IC50 = 60 nM) and a strong oral efficacy in in vivo anti-inflammatory assays (significant effects at 1 mg/kg, po in arachidonic acid-induced ear edema model in mice). (C) 2004 Elsevier Ltd. All rights reserved.