(-)-tert-butyl-[(2R,4S,5S,6R,7S)-7-methoxymethoxymethyl-4,7-dimethyl-6-vinyl-1-oxaspiro[4.4]non-2-ylmethoxy]diphenylsilane

(+)-tert-butyl-[(2R,4S,5R,6R,7S)-7-methoxymethoxymethyl-4,7-dimethyl-6-vinyl-1-oxaspiro[4.4]non-2-ylmethoxy]diphenylsilane

(-)-tert-butyl-[(2R,4S,5S,6S,7S)-7-methoxymethoxymethyl-4,7-dimethyl-6-vinyl-1-oxaspiro[4.4]non-2-ylmethoxy]diphenylsilane

Dimethyl-carbamic acid (S)-4-[(2E,6E)-3,7-dimethyl-9-((2S,3S)-3-methyl-3-vinyl-oxiranyl)-nona-2,6-dienyl]-4-methyl-3-oxo-2-triisopropylsilanyloxy-cyclopent-1-enyl ester

(3S,5R)-5-Aminomethyl-3-methyl-dihydro-furan-2-one