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pharmacy medicinal chemistry pharmaceutical organic chemistry stereochemistry organic and heterocyclic chemistry antibiotics heterocyclic chemistry treatment optical isomerism medicinal chemistry-ii antimalarial drugs malaria chemistry heterocyclic pyridine diuretics isoquinoline quinoline dakin reaction beckmann rearrangement classification structures and activity relationship wolff kishner reduction pci syllabus birch reduction organic / heterocyclic chemistry clemmensen reduction anti-neoplastic agents anti cancer agents recent advances antihistaminic presentation cephalosporin tetracyclines macrolides pharamceutical aminoglycosides prodrug tuberculosis antitb geometrical isomerism antiprotozoal drugs anti fungal agents antibacterial sulphonamides lecture notes anthelmintic drugs uti urinary tract infection recent advancement reduction with metal hydride