The process 1 in which the base employed in {HEAD ~ the hydrolysis} of {TAIL ~ the Diels Alder adduct} is an alkali metal hydroxide 
of
The process 1 in which the base employed in { HEAD ~ the hydrolysis } of { TAIL ~ the Diels Alder adduct } is an alkali metal hydroxide
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH