(3,5-二甲氧基-4-羟基苯基)乙酮

diethyl 2-[cyano(phenyl)methyl]propanedioate

2-chloroethoxy(dimethyl)silane

diethyl 4-nitrobenzene-1,2-dicarboxylate

4-O-ethyl 1-O-methyl benzene-1,4-dicarboxylate