5,5a,6a,7,8,10a-hexahydroacephenanthrylen-6(4H)-one

6-Hydroxycyclohex-2-ene-1-one

anti-3,5,7,8-tetraoxa-4,4-dimethyl-tricyclo[5.2.2.02,6]undec-10-ene

exo-7-Methylbicyclo(4.1.0)hept-2-ene

trans-Cyclohex-2-ene-1,4-dicarboxylic acid