IUPAC:(2E)-4-{[(2R,4R,5S,6R)-2-hydroxy-2-[(2S,3R,4S)-3-hydroxy-4-[(2R,3S,4E,6E,9S,10S,11R,12E,14E)-10-hydroxy-3,15-dimethoxy-7,9,11,13-tetramethyl-16-oxo-1-oxacyclohexadeca-4,6,12,14-tetraen-2-yl]pentan-2-yl]-5-methyl-6-(propan-2-yl)oxan-4-yl]oxy}-4-oxobut-2-enoic acid
IUPAC:(2E)-4-{[(2R,4R,5S,6R)-2-hydroxy-2-[(2S,3R,4S)-3-hydroxy-4-[(2R,3S,4E,6E,9S,10S,11R,12E,14E)-10-hydroxy-3,15-dimethoxy-7,9,11,13-tetramethyl-16-oxo-1-oxacyclohexadeca-4,6,12,14-tetraen-2-yl]pentan-2-yl]-5-methyl-6-(propan-2-yl)oxan-4-yl]oxy}-4-oxobut-2-enoic acid