(2S,3S,4R,7R,8S,9S,10R,11R,13R)-2-[(1S)-1-(dimethylamino)ethyl]-10-[4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-4-ethyl-3,11-dihydroxy-8-(5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl)oxy-3,7,9,11,13-pentamethyl-1,5-dioxacyclotetradecane-6,14-dione