1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid dimethylamide

1,5-dimethyl-2-phenyl-4-(2,2,2-trichloro-1-hydroxy-ethyl)-1,2-dihydro-pyrazol-3-one

安替比林

4-(hydroxymethyl)-1,5-dimethyl-2-phenylpyrazol-3-one

1,5-dimethyl-2-phenyl-4-(phenylimino-methyl)-1,2-dihydro-pyrazol-3-one