乙基5-羟基-1-环戊烯-1-羧酸酯

1-O-ethyl 5-O-methyl (4S)-4-ethyl-4-phenylpent-2-enedioate

1-(4-chlorophenyl)-2-diethoxyphosphorylethanone

ethyl 3,3-diphenylprop-2-enoate

2-(diethoxyphosphorylmethylidene)-1,3-dithiolane