1,4-立方烷二甲酸二甲酯

2,2,3,3,4,4,5,5-octafluorocyclopentan-1-one

2,2,3,3,6,6,7,7,8,8,9,9-dodecafluoro-1,4-dioxaspiro[4.4]nonane

spiro[4.4]nonane-1,4-dione