methyl 2-(2-methoxycarbonylbenzoyl)benzoate

2,2'-羰基二苯甲酸

3,3'-spirobi[2-benzofuran]-1,1'-dione

2-Diazo-3-{2-[2-(2-diazo-2-methoxycarbonyl-acetyl)-benzyl]-phenyl}-3-oxo-propionic acid methyl ester

3-{2-[2-(2-Methoxycarbonyl-acetyl)-benzyl]-phenyl}-3-oxo-propionic acid methyl ester