spiro[2.4]heptane

三羰基(η-环戊二烯基)合锰

甲醚

1,1'-(diazene-1,2-diyl)diethanone

1-acetyl-3-methyl-(4ar,7ac)-1,4a,7,7a-tetrahydro-cyclopenta[1,3,4]oxadiazine