4-甲基-2-苯基-1,3-噁唑-5-羧酸乙酯

ethyl 2-(3-chloro-1,4-dioxonaphthalen-2-yl)-3-oxobutanoate

(2Z)-氯[(4-甲氧基苯基)亚肼基]乙酸乙酯

(Z)-ethyl 3-(diethoxyphosphoryloxy)but-2-enoate

ethyl 3-diethoxyphosphoryloxybut-2-enoate