(E)-(6S,7S,12R)-6-(tert-Butyl-dimethyl-silanyloxy)-12-[(E)-(1S,5R)-1,3-dimethyl-5-((7R,9R)-9-methyl-6,10-dioxa-spiro[4.5]dec-7-yl)-hex-3-enyl]-7,9-dimethyl-oxacyclododec-9-en-2-one

(8E,14E)-(5S,6S,11R,12S,16R)-5-(tert-Butyl-dimethyl-silanyloxy)-6,8,12,14-tetramethyl-16-((7R,9R)-9-methyl-6,10-dioxa-spiro[4.5]dec-7-yl)-heptadeca-8,14-diene-1,11-diol

(8E,14E)-(5S,6S,11R,12S,16R)-5-(tert-Butyl-dimethyl-silanyloxy)-11-hydroxy-6,8,12,14-tetramethyl-16-((7R,9R)-9-methyl-6,10-dioxa-spiro[4.5]dec-7-yl)-heptadeca-8,14-dienoic acid

(7R,9R)-7-[(2E,8E)-(1R,5S,6R,11S,12S)-12,16-Bis-(tert-butyl-dimethyl-silanyloxy)-1,3,5,9,11-pentamethyl-6-triethylsilanyloxy-hexadeca-2,8-dienyl]-9-methyl-6,10-dioxa-spiro[4.5]decane