The diphenyl amine derivatives 1, which is selected from {HEAD ~ the group} consisting of {TAIL ~ the following compounds}: 
consisting of
The diphenyl amine derivatives 1 , which is selected from { HEAD ~ the group } consisting of { TAIL ~ the following compounds } :
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH