(4-methoxyphenyl) 3-(4-methoxyphenyl)prop-2-enoate

(4-methoxyphenyl) N-(oxomethylidene)sulfamate

ethyl 5-(9-oxoxanthen-2-yl)oxypentanoate

3-溴-2-羟基-5-甲氧基苯甲醛

(4-methoxyphenyl) benzoate