双环[2.1.0]戊烷

cis-1,3-bis(1',1',3',3'-tetramethyl-1',3'-dihydroisoindolin-2'-yloxyl)cyclopentane

trans-1,3-bis(1',1',3',3'-tetramethyl-1',3'-dihydroisoindolin-2'-yloxyl)cyclopentane

环戊烯

1,4-戊二烯