The present invention provides {TAIL ~ an improved synthesis} for the manufacture of candesartan and pharmaceutically acceptable salts and esters thereof as active ingredients of {HEAD ~ 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 
The present invention provides { TAIL ~ an improved synthesis } for the manufacture of candesartan and pharmaceutically acceptable salts and esters thereof as active ingredients of { HEAD ~ 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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