(+/-)-isonicotinic acid-(1,2t,5c-trimethyl-4-phenyl-[4r]piperidyl ester)
Isonicotinic acid N-methyl-β-phenylisopropylamide
1,3-dihydro-4-isonicotinoyl-5-methyl-2H-imidazole-2-one
piroximone
4-Propyl-5-(pyridine-4-carbonyl)-1,3-dihydro-imidazol-2-one