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