Tylosin A

2- ((4R,5S,6S,7R,9R,11E,13E,15R,16R) -6- (((2R,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) -16-ethyl-4-hydroxy-15- ((((2R,3R,4R,5R,6R) -5-hydroxy-3,4-dimethoxy-6-methyltetrahydro-2H-pyran-2-yl) oxy) methyl) -5,9,13-trimethyl-2,10-dioxooxacyclohexadeca-11,13-dien-7-yl) acetaldehyde