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

(R)-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)-butyric acid