In {HEAD ~ a further aspect}, {TAIL ~ the present invention} provides candesartan cilexetil substantially free of 2 oxo impurities of structural formula : 
In { HEAD ~ a further aspect } , { TAIL ~ the present invention } provides candesartan cilexetil substantially free of 2 oxo impurities of structural formula :
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH