(3R,4S,5S,6R,7R,9R,10S,11S,12R,13S,14R)-4-{[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyl-3,4,5,6-tetrahydro-2H-pyran-2-yl]oxy}-6-{[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyl-3,4,5,6-tetrahydro-2H-pyran-2-yl]oxy}-10-amino-14-ethyl-7,12,13-trihydroxy-3,5,7,9,11,13-hexamethyloxacyclotetradecan-2-one