The S benzothiophenium salt 2, wherein {HEAD ~ R5} is {TAIL ~ a cyclopropyl group} 
is
The S benzothiophenium salt 2 , wherein { HEAD ~ R5 } is { TAIL ~ a cyclopropyl group }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL