5-methyl-2-phenyl-4-(propan-2-ylidene)-2,4-dihydro-3H-pyrazol-3-one

氰乙酸乙酯

5-甲基-2-苯基-3-吡唑烷酮

3-methyl-5-oxo-1-phenyl-4H-pyrazole-4-carbaldehyde