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