英文名称
Dimethyl 7-oxabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate;ethyl 3-methyl-7-oxabicyclo[2.2.1]hept-5-ene-2-carboxylate;4-methyl-11-oxatricyclo[6.2.1.02,7]undeca-2(7),3,5,9-tetraene;11-oxatricyclo[6.2.1.02,7]undeca-2,4,6,9-tetraene;tricyclo[6.2.1.02,7]undeca-2,4,6,9-tetraene