(3R,5S)-5-((1S)-1-(N-Boc-amino)-3-methylbutyl)-3-(2-methylprop-2-enyl)dihydrofuran-2(3H)-one

(2S,4S,5S)-2-(2-propyl)-4-hydroxy-5-<(tert-butyloxycarbonyl)amino>-7-methyloctanoic acid, γ-lactone

[(2R,4S,5S)-5-(N-Boc-amino)-4-hydroxy-2,7-dimethyloctanoyl] N'-isobutyl amide

[(2R,4S,5S)-5-(N-Boc-amino)-4-[(tert-butyldimethylsilyl)oxy]-2,7-dimethyloctanoyl] N'-isobutyl amide

[(2R,4S,5S)-5-(N-Boc-L-phenylalanylamido)-4-hydroxy-2,7-dimethyloctanoyl] N'-isobutyl amide