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