7-oxabicyclo[2.2.1]hept-5-en-2,3-dicarbonitrile

3-chloro-2-ethoxy-tetrahydro-furan

2-重氮丙烷

N-甲基-1-苯基甲亚胺氧化物

4,10-dioxatricyclo(5.2.1.02,6)dec-8-en-3-ol