Ethyl 4-(tert-Butyldiphenylsiloxy)-5-methyl-hexa-2(E),5-dienoate

4,5-Isopropylidenedioxy-3-(tert-butyldiphenylsiloxy)-2-methylpent-1-ene

methyl (2E,4R,5S)-4-(tert-butyldiphenylsilyl)oxy-5,6-epoxy-5-methylhex-2-enoate

Methyl 4(R)-(tert-Butyldiphenylsiloxy)-5,6-epoxy-5(R)-methyl-but-2(E)-enoate