(3aR,5S,6S,6aR)-2,2,6-Trimethyl-5-((S)-1-methyl-but-2-ynyl)-tetrahydro-furo[2,3-d][1,3]dioxole

(3aR,5S,6S,6aR)-5-((E)-(S)-3-Bromo-1-methyl-but-2-enyl)-2,2,6-trimethyl-tetrahydro-furo[2,3-d][1,3]dioxole

<3R*-<3α(1RS),4β,5α(1S*)>>-3-(1-ethoxyethoxy)-4-methyl-5-(1-methylbut-2-ynyl)dihydrofuran-2(3H)-one

(2E,4E)-(S)-4-Methyl-6-((3aR,5S,6S,6aR)-2,2,6-trimethyl-tetrahydro-furo[2,3-d][1,3]dioxol-5-yl)-hepta-2,4-dienoic acid

(2E,4E)-(S)-4-Methyl-6-((3aR,5S,6S,6aR)-2,2,6-trimethyl-tetrahydro-furo[2,3-d][1,3]dioxol-5-yl)-hepta-2,4-dienoyl chloride