ethyl 2-cyano-3-(3-ethoxy-4-hydroxyphenyl)prop-2-enoate

ethyl 2-cyano-3-(2-hydroxyphenyl)prop-2-enoate

2-(1-噻吩)-3,4-二羟基亚苄基氰基乙酸乙酯

3-氰基-7-甲氧基香豆素

ethyl 7-methoxy-2-oxochromene-3-carboxylate