(6R)-6-{(1E,3R,4R,7Z)-4-hydroxy-8-iodo-3-methyl-6-oxo-3-[(triethylsilyl)oxy]octa-1,7-dien-1-yl}-5,6-dihydro-2H-pyran-2-one

(3R,4R,5E)-4-methyl-6-[(2R)-6-oxo-3,6-dihydro-2H-pyran-2-yl]-3,4-bis[(triethylsilyl)oxy]hex-5-enal

(6R)-6-[(1E,3R,4R)-6-hydroxy-3-methyl-3,4-bis[(triethylsilyl)oxy]hex-1-en-1-yl]-5,6-dihydro-2H-pyran-2-one

(6R)-6-{(1E,3R)-3-methyl-6-oxo-3,4-bis[(triethylsilyl)oxy]oct-1-en-7-yn-1-yl}-5,6-dihydro-2H-pyran-2-one