[(2R,3S,4S,5R,6S)-6-[(1R)-1-[(2S,5R,7S,8R,9S)-2-[(2R,5S)-5-[(2R,3S,5R)-3-{[(2R,4S,5S,6S)-4,5-dimethoxy-6-methyl-3,4,5,6-tetrahydro-2H-pyran-2-yl]oxy}-5-[(2S,3S,5R,6S)-6-hydroxy-3,5,6-trimethyl-3,4,5,6-tetrahydro-2H-pyran-2-yl]tetrahydro-2-furyl]-5-methyltetrahydro-2-furyl]-9-hydroxy-2,8-dimethyl-1,6-dioxaspiro[4.5]decan-7-yl]ethyl]-2-hydroxy-4,5-dimethoxy-3-methyl-3,4,5,6-tetrahydro-2H-pyran-2-yl]acetic acid ammonia