(E)-(R)-5-(tert-Butyl-dimethyl-silanyloxy)-1-[(2R,3R)-3-(4-methoxy-benzyloxymethyl)-1,4-dioxa-spiro[4.4]non-2-yl]-pent-2-en-1-ol

(2S,3R)-2-(tert-Butyl-dimethyl-silanyloxy)-3-methyl-6-trimethylsilanyl-hex-5-ynal

(E)-(4R,5S,8S)-4,8-Dimethyl-undec-6-en-1-yn-5-ol

(E)-(4R,5S,8S)-5-(tert-Butyl-dimethyl-silanyloxy)-4,8-dimethyl-1-trimethylsilanyl-undec-6-en-1-yne

(2S,3R)-3-[1-((2S,3S)-3-Allyl-1,4-dioxa-spiro[4.4]non-2-yl)-vinyl]-1,4-dioxa-spiro[4.4]nonane-2-carbaldehyde