The mixture is then treated with an anhydrous tertiary amine base, such as for example, {HEAD ~ pyridine}, followed by benzoyl chloride to acylate {TAIL ~ the resulting alcohol} 
The mixture is then treated with an anhydrous tertiary amine base , such as for example , { HEAD ~ pyridine } , followed by benzoyl chloride to acylate { TAIL ~ the resulting alcohol }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL