Compounds having the following formula I:
or a stereoisomer or pharmaceutically-acceptable salt thereof, where all substituents are as defined herein, are useful in the modulation of IL-12, IL-23 and/or IFNα, by acting on Tyk-2 to cause signal transduction inhibition.
具有以下
化学式I的化合物,或其立体异构体或药学上可接受的盐,在所有取代基如此定义的情况下,可用于调节IL-12、I
L-23和/或IFNα,通过作用于Tyk-2以引起
信号转导抑制。