The present invention provides {HEAD ~ an improved synthesis} for the manufacture of candesartan and pharmaceutically acceptable salts and {TAIL ~ esters} thereof as active ingredients of a medicament for the treatment of hypertension and related diseases and conditions which comprises the removal of the tetrazolyl protecting group in an organic solvent, and in the presence of a Lewis acid 
for
The present invention provides { HEAD ~ an improved synthesis } for the manufacture of candesartan and pharmaceutically acceptable salts and { TAIL ~ esters } thereof as active ingredients of a medicament for the treatment of hypertension and related diseases and conditions which comprises the removal of the tetrazolyl protecting group in an organic solvent , and in the presence of a Lewis acid
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