(Z)-1,4-diiodo-2-methyl-1-butene

(5Z)-8-iodo-6-methyl-1-trimethylsilyl-5-octen-yne

ethyl 7,11-dimethyl-3-oxododeca-6,10-dienoate

ethyl 3-(((trifluoromethyl)sulfonyl)oxy)-7,11-dimethyldodeca-2(E),6(Z),10-trienoate