Josamycin EP Impurity K

Chemical Name: (4R,5S,6S,7R,9R,10R,11E,13E,16R)-4-(Acetyloxy)-6-[[3,6-dideoxy-4-O-(2,6-dideoxy-3-C-methyl-4-O-propanoyl-α-L-ribo-hexopyranosyl)-3-(dimethylamino)-β-D-glucopyranosyl]oxy]-10-hydroxy-5-methoxy-9,16-dimethyl-7-(2-oxoethyl)oxacyclohexadeca-11,13-dien-2-one (as per EP)

Smile: C[C@@H](O[C@H]1O[C@@]([H])([C@]([H])(C[C@]([H])([C@]([H])(/C=C/C=C/C[C@]([H])(OC(C[C@]2(OC(C)=O)[H])=O)C)O)C)CC([H])=O)[C@]2(OC)[H])[C@H]([C@@H]([C@H]1O)N(C)C)O[C@@H]3O[C@H]([C@@H]([C@@](C)(C3)O)OC(CC)=O)C