(2R,3S,4R,5R,6S)-6-(((2R,3S,4R,5R,6S)-2-(allyloxy)-3,5-dihydroxy-6-methyltetrahydro-2H-pyran-4-yl)oxy)-5-amino-2-(hydroxymethyl)tetrahydro-2H-pyran-3,4-diol