4-吗啉丙酸 b-氧代-乙酯

2-diazonio-3-dimethoxyphosphoryl-1-ethoxy-3-hydroxybut-1-en-1-olate

ethyl 3-chlorobut-2-enoate

chloro(diphenyl)germanium,diphenyl-λ³-germane

ethyl 2-(chlorodiphenylgermyl)acetate