对溴甲苯

二甲基锌

2-(4-methylphenyl)-1,2-dimethylcyclopentanol

4-methyl-1-(1,2,2-trimethylcyclopentyl)pent-4-en-1-one

7-methyl-4-(1,2,2-trimethylcyclopentyl)octa-1,7-dien-4-ol