(1S,2S,4S,7R,9S,10S,12R,15S)-9-{[(3R,4S,5R)-3,4,5-trihydroxy-3,4,5,6-tetrahydro-2H-pyran-2-yl]oxy}-15-{[(2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoyl]oxy}-4-acetoxy-2-(benzoyloxy)-1-hydroxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.04,7.03,10]heptadec-13(14)-en-12-yl acetate