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