The neuroprotective action of JNK3 inhibitors based on the 6,7-dihydro-5H-pyrrolo[1,2-a]imidazole scaffold
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 neurones.
Graczyk, Piotr P.,Khan, Afzal,Bhatia, Gurpreet S.,Palmer, Vanessa,Medland, Darren,Numata, Hirotoshi,Oinuma, Hitoshi,Catchick, Jacqueline,Dunne, Angela,Ellis, Moira,Smales, Caroline,Whitfield, Jonathan,Neame, Stephen J.,Shah, Bina,Wilton, Daniel,Morgan, Louise,Patel, Toshal,Chung, Raymond,Desmond, Howard,Staddon, James M.,Sato, Nobuaki,Inoue, Atsushi
p. 4666 - 4670
(2007/10/03)
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