(S)-2-[(2R,5S)-5-((1S,2S)-2-Hydroxy-1-methyl-pentyl)-tetrahydro-furan-2-yl]-propionic acid benzyl ester

(S)-2-((2R,5S)-5-{(1R,2S)-2-[(R)-2-((2R,5S)-5-{(1S,2S,3S)-3-[(2R,5S)-5-((R)-2-Dimethylamino-pentyl)-tetrahydro-furan-2-yl]-2-hydroxy-1-methyl-butyl}-tetrahydro-furan-2-yl)-propionyloxy]-1-methyl-pentyl}-tetrahydro-furan-2-yl)-propionic acid

2-(5-{2-[2-(5-{3-[5-(2-dimethylamino-pentyl)-tetrahydro-furan-2-yl]-2-hydroxy-1-methyl-butyl}-tetrahydro-furan-2-yl)-propionyloxy]-1-methyl-pentyl}-tetrahydro-furan-2-yl)-propionic acid benzyl ester

2-(5-{2-(tert-butyl-dimethyl-silanyloxy)-3-[5-(2-dimethylamino-pentyl)-tetrahydro-furan-2-yl]-1-methyl-butyl}-tetrahydro-furan-2-yl)-propionic acid 1-{1-[5-(1-benzyloxycarbonyl-ethyl)-tetrahydro-furan-2-yl]-ethyl}-butyl ester