Compounds of {HEAD ~ Formula} 9 where {TAIL ~ the A group} has a triple bond can be made by reaction of a corresponding aromatic methyl ketone with strong base, such as lithium diisopropylamide, reaction with diethyl chlorophosphate and subsequent addition of lithium diisopropylamide 
Compounds of { HEAD ~ Formula } 9 where { TAIL ~ the A group } has a triple bond can be made by reaction of a corresponding aromatic methyl ketone with strong base , such as lithium diisopropylamide , reaction with diethyl chlorophosphate and subsequent addition of lithium diisopropylamide
OTH OTH HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH