(1S,3R,4E,6E,8Z,10E,14E,18S,19R,20S,21S,25R,27R,30R,31R,33S,35R,37S,38R)-3-{[(2R,3S,4S,5S,6R)-4-amino-3,5-dihydroxy-6-methyl-3,4,5,6-tetrahydro-2H-pyran-2-yl]oxy}-19,25,27,30,31,33,35,37-octahydroxy-1,18,20,21-tetramethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10,14-pentaene-38-carboxylic acid