Erythromycin EP Impurity A

Chemical Name: (3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-4-[(2,6-dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)oxy]-14-ethyl-7,12,13-trihydroxy-3-(hydroxymethyl)-5,7,9,11,13-pentamethyl-6-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylo-hexopyranosyl]oxy]oxacyclotetradecane-2,10-dione (as per EP)

Smile: C[C@@]1([H])[C@@](O[C@@H]2O[C@@H](C)[C@H](O)[C@@](OC)(C)C2)([H])[C@@]([H])(CO)C(O[C@]([H])(CC)[C@@](C)(O)[C@@](O)([H])[C@@]([H])(C)C([C@]([H])(C)C[C@](O)(C)[C@]1([H])O[C@@H]3O[C@H](C)C[C@H](N(C)C)[C@H]3O)=O)=O