“Substituted sulfoxide” refers to a group —SR, in which {HEAD ~ R} is substituted {TAIL ~ alkyl}, substituted aryl, or substituted heteroaryl, as defined herein 
is substituted
“ Substituted sulfoxide ” refers to a group — SR , in which { HEAD ~ R } is substituted { TAIL ~ alkyl } , substituted aryl , or substituted heteroaryl , as defined herein
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH