(3E,5E,9E)-2-Eth-(E)-ylidene-11-hydroxy-4,10-dimethyl-undeca-3,5,9-trienoic acid methyl ester

methyl (2E,3E,5E,9E)-2-ethylidene-4,10-dimethyl-11-tert-butyldimethylsilyloxy-3,5,9-undecatrienoate

(1S,4S,5S)-4-methyl-1-[(2E,6E,8E,10E)-2,8-dimethyl-1-hydroxy-10-methoxycarbonyldodeca-2,6,10-trienyl]-3,6-dioxabicyclo[3.1.0]hexan-2-one

(3E,5E,9E)-methyl [(2E)-ethylidene]-4,10-dimethyl-11-((1R,4S,5S)-4-methyl-2-oxo-3,6-dioxa-bicyclo[3.1.0]hex-1-yl)-11-oxo-undeca-3,5,9-trienoate