(2E,4E)-ethyl 2-methyl-5-((4R,5R)-5-methyl-2-oxo-1,3-dioxolan-4-yl)penta-2,4-dienoate

(1R,2E,4E)-ethyl 7-hydroxy-2-methylocta-2,4-dienoate

(R,2E,4E)-ethyl 7-(tert-butyldimethylsilyloxy)-2-methylocta-2,4-dienoate

(4S,5S,7R,E)-ethyl 7-(tert-butyldimethylsilyloxy)-4,5-dihydroxy-2-methyloct-2-enoate

(4S,5S,7R,E)-ethyl 4,5,7-tris(tert-butyldimethylsilyloxy)-2-methyloct-2-enoate