bicyclo[2.2.1]hept-2-ene-2,3-dicarboxylic acid

2,5-降冰片二烯-2,3-二羧酸

3-(甲氧基羰基)双环[2.2.1]-2,5-庚二烯-2-羧酸

1,2,3,4-tetraphenylbenzene

1,5-Dicarbomethoxy quadricyclane