1,1-dimethyl-2-(2-methylprop-1-enyl)cyclopropane

二氢猕猴桃内酯

4,4,8-trimethyl-1-oxaspiro[2.5]oct-7-ene

2,4,4-trimethyl-3-(3-oxobutyl)cyclohex-2-en-1-one

2,4,4-trimethyl-3-(2-trimethylsilylethynyl)cyclohex-2-en-1-one