(2R,4S,2'S)-(2-methyl-4-oxopentyl)-3,4-dihydro-2H-pyran-4-yl-acetate

(2R,6R,2'S)-4-[6-(2-methyl-4-oxopentyl)-5,6-dihydro-2H-pyran-2-yl]but-2-ynoic acid tert-butyl ester

(2R,2'S,4'R)-2-[4-(tert-butyldiphenylsilyloxy)-2-methylpentyl]-2,3-dihydropyran-4-one

(2R,4S)-2-[(2R,4R)-4-(tert-Butyl-diphenyl-silanyloxy)-2-methyl-pentyl]-3,4-dihydro-2H-pyran-4-ol

(4E)(2S)-(4-methoxybenzyloxy)-6-(triphenylmethyloxy)hex-4-en-1-al