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