2-(5-oxo-6,7,8,9-tetrahydrobenzo[7]annulen-6-yl)acetic acid

2,4-二硝基-苯乙酸乙酯

bromozinc(1+),ethyl 2-methylpropanoate

ethyl 2-selenocyanatoacetate

(3-甲基丁氧基)乙酸