4-Arylamino, 4-aryloxy, and 4-arylthio diarylamines and derivatives thereof as selective MEK inhibitors
The invention provides compounds of formula (II), wherein Ar, R3, R4, R5, R6, R7, R8 and W have the meanings given in the description. They are selective MEK inhibitors. 
Warner-Lambert Company
C C C C C C C C C C C C
C07D C07C C07C C07D C07C C07C C07C C07D C07C C07C C07D C07D
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Haile Stephen
Tecle Barrett