diethyl 2,5-dihydroxyhexa-2,4-dienedioate

2-间甲苯-噻唑-4-羧酸乙酯

ethyl 3-bromo-7-methyl-8-nitroimidazo[1,2-a]pyridine-2-carboxylate

2-吲哚嗪羧酸乙酯

3-(3,4-二氢喹啉-1(2H)-基)-2-氧代丙酸乙酯