(E)-(R)-6-((2S,4R,6S,8S,9R)-4-Benzyloxy-8,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl)-2,4-dimethyl-hex-4-enoic acid

(E)-(R)-6-[(2S,4R,6S,8S,9R)-4-(tert-Butyl-dimethyl-silanyloxy)-8,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl]-2,4-dimethyl-hex-4-enal

2-[(1E,3E,7E)-(R)-9-((2S,4R,6S,8S,9R)-4-Hydroxy-8,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl)-1,5,7-trimethyl-nona-1,3,7-trienyl]-4-methoxy-5-methyl-benzoic acid methyl ester