(4R,6R,2E)-methyl 7-(dimethyl-t-butylsiloxy)-4,6-dimethyl-4-(2-trimethylsilylethoxymethoxy)hept-2-enoate

(2E,4R)-5-((tert-butyldimethylsilyl)oxy)-2,4-dimethylpent-2-en-1-ol

2-(三甲基硅烷基)乙氧甲基氯