(3S,4S,5S)-3-Allyl-5-methyl-4-vinyl-dihydro-furan-2-one

(3R,4S)-3-Allyl-4-[(S)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-hex-5-enoic acid methyl ester

(4S,5S,6S)-4-Allyl-3-[1-dimethylamino-meth-(Z)-ylidene]-6-methyl-5-vinyl-tetrahydro-pyran-2-one

Toluene-4-sulfonic acid (R)-2-hydroxy-2-((2R,3R)-2-hydroxymethyl-5-oxo-tetrahydro-furan-3-yl)-ethyl ester