The neuroprotective action of JNK3 inhibitors based on the 6,7-dihydro-5H-pyrrolo[1,2-a]imidazole scaffold
作者:Piotr P. Graczyk、Afzal Khan、Gurpreet S. Bhatia、Vanessa Palmer、Darren Medland、Hirotoshi Numata、Hitoshi Oinuma、Jacqueline Catchick、Angela Dunne、Moira Ellis、Caroline Smales、Jonathan Whitfield、Stephen J. Neame、Bina Shah、Daniel Wilton、Louise Morgan、Toshal Patel、Raymond Chung、Howard Desmond、James M. Staddon、Nobuaki Sato、Atsushi Inoue
DOI:10.1016/j.bmcl.2005.07.076
日期:2005.11
Imidazole-based structures of p38 inhibitors served as a starting point for the design of JNK3 inhibitors. Construction of a 6,7-dihydro-5H-pyrrolo[1,2-a]imidazole scaffold led to the synthesis of the (S)-enantiomers, which exhibited p38/JNK3 IC50 ratio of up to 10 and were up to 20 times more potent inhibitors of JNK3 than the relevant (R)-enantiomers. The JNK3 inhibitory potency correlated well with inhibition of c-Jun phosphorylation and neuroprotective properties of the compounds in low K+-induced cell death of rat cerebellar granule neurotics. (c) 2005 Elsevier Ltd. All rights reserved.