methyl 11-oxa-endo,endo-tetracyclo<6.2.1.13,6.02,7>dodec-9-ene-9,10-dicarboxylate

α-chloronorbornene

bicyclo[2.2.1]heptan-2-exo-yl toluene-p-sulphonate

EXO-2-溴降莰烷

exo-2,3-epoxynorbornane