7-hydroxybicyclo[5.4.0]undec-9-en-2-one

syn-6-chloromethylenecyclodec-3-enone

syn-11-chloro-1,6-dihydroxybicyclo[4.4.1]undec-3-ene

trans-bicyclo[4.4.0]dec-3-ene-1-carboxylic acid

7,7-二氯二环[4.1.0]庚烷