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