Josamycin EP Impurity D

Chemical Name:  (4R,5S,6S,7R,9R,10Z,12E,14R,16R)-4-(Acetyloxy)-6-[[3,6-dideoxy-4-O-[2,6-dideoxy-3-C-methyl-4-O-(3-methylbutanoyl)-α-L-ribo-hexopyranosyl]-3-(dimethylamino)-β-D-glucopyranosyl]oxy]-14-hydroxy-5-methoxy-9,16-dimethyl-7-(2-oxoethyl)oxacyclohexadeca-10,12-dien-2-one (as per EP)

Synonym: Isojosamycin