4-hydroxy-2-oxo-2H-chromene-3-carbaldehyde phenylhydrazone
7,16-bis(2-hydroxybenzoyl)-5,14-dihydrodibenzo[b,i][1,4,8,11]tetraazacyclotetradecine
chromone-3-carboxylic acid
3-(2-Methyl-5-p-tolyl-isoxazolidin-3-yl)-chromen-4-one
3-(2-Methyl-5-phenyl-isoxazolidin-3-yl)-chromen-4-one