ethyl 3-(4-formylphenyl)-3-hydroxypropanoate

beta,beta'-二羟基苯-1,4-二丙酸二乙酯

ethyl 2-(4,6-dichloropyrimidin-2-yl)sulfanylacetate

(5-甲基-[1,3,4]噻二唑-2-基磺酰基)-乙酸

ethyl 2-[(5-oxo-7,8-dihydro-6H-naphthalen-2-yl)oxy]acetate