QJ151905

Josamycin EP Impurity E

Synonyms: (2S,3S,4R,6S)-6-(((2R,3S,4R,5R,6S)-4-(dimethylamino)-5-hydroxy-6-(((4R,5S,6S,7R,9R,10R,11E,13E,16R)-10-hydroxy-5-methoxy-9,16-dimethyl-2-oxo-7-(2-oxoethyl)-4-(propionyloxy)oxacyclohexadeca-11,13-dien-6-yl)oxy)-2-methyltetrahydro-2H-pyran-3-yl)oxy)-4-hydroxy-2,4-dimethyltetrahydro-2H-pyran-3-yl 3-methylbutanoate