4-ethoxy-4-oxo-3-(triphenyl-λ⁵-phosphanylidene)butanoate

N-ethyl-N-methyloctan-1-amine

ethyl 2-chloro-3-ethoxycarbothioylsulfanylpropanoate

1-乙氧基-2-硝基-4-(三氟甲基)苯

ethyl 4-hydroxy-3-methylbut-2-enoate