dimethyl 7-oxabicyclo[2.2.1]hepta-2(3),5(6)-diene-2,3-dicarboxylate

叠氮

二甲基双环[2.2.1]-2,5-庚二烯-2,3-二羧酸

1-phenyl-4,5-dihydro-5-hydroxy-1H-1,2,3-triazole

7-isopropylidene-2,3-dicarbomethoxynorbornadiene