The compound 6, wherein the stereochemistry of {TAIL ~ the carbon} to which {HEAD ~ R2} and R3 are attached is of the S onfiguration 
to attached
The compound 6 , wherein the stereochemistry of { TAIL ~ the carbon } to which { HEAD ~ R2 } and R3 are attached is of the S onfiguration
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL REL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL OTH OTH OTH OTH OTH