乙基3,3-二(二乙氧基磷酰)丙酸酯

ethyl 3-diethoxyphosphorylprop-2-enoate

ethyl 3-(3-nitropyridin-2-yl)sulfanylprop-2-enoate

ethyl 4-hydroxyhept-5-en-2-ynoate

5-[(叔丁氧羰基)氨基]吡唑并[1,5-a]吡啶-3-羧酸乙酯