128765-02-6 2,2'-Biquinoxaline, 3-(1,1-dimethylethyl)-5,5',6,6',7,7',8,8'-octamethyl- 13445-44-8 (4R,5S,6S,7R,9R,10R,11E,13E,16R)-6-{[(2S,3R,4R,5S,6R)-5-{[(2S,4R,5S,6S)-4,5-dihydroxy-4,6-dimethyltetrahydro-2H-pyran-2-yl]oxy}-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl]oxy}-10-{[(2R,5S,6S)-5-(dimethylamino)-6-methyltetrahydro-2H-pyran