(Z)-4-hydroxy-2-oxo-N'-[2-oxo-3-(triphenyl-λ⁵-phosphanylidene)propanoyl]-4-phenylbut-3-enehydrazide

2-氧代-3-三(苯基)膦亚基丙酰肼

乙二酸二酰肼

2-氧代-4-苯基丁酸乙酯

ethyl 2-oxo-4-phenylbut-3-enoate