(2S,3S,4R,6S)-6[(2R,3S,4R,5R,6S)-4-(dimethylamino)-5-hydroxy-6[(4R,6S,7R,9R,10R,11E,13E,16R)-10-hydroxy-5-methoxy-9,16-dimethyl-2-oxo-7-(2-oxoethyl)-4-(propanoyloxy)-1-oxacyclohexadeca-11,13-dien-6-yl]oxy2-methyloxan-3-yl]oxy4-hydroxy-2,4-dimethyloxan-3-yl propanoate