Showing structure for 6-[(6-{[(11z,13z)-4-(acetyloxy)-10-{[5-(dimethylamino)-6-methyloxan-2-yl]oxy}-5-methoxy-9,16-dimethyl-2-oxo-7-(2-oxoethyl)-1-oxacyclohexadeca-11,13-dien-6-yl]oxy}-4-(dimethylamino)-5-hydroxy-2-methyloxan-3-yl)oxy]-4-hydroxy-2,4-dimethyloxan-3-yl butanoate