Disclosed are {HEAD ~ the ERK inhibitors} of {TAIL ~ formula} : and the pharmaceutically acceptable salts thereof 
of
Disclosed are { HEAD ~ the ERK inhibitors } of { TAIL ~ formula } : and the pharmaceutically acceptable salts thereof
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH