Erythromycin Ethylsuccinate EP Impurity G

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-3,5,7,9,11,13-hexamethyl-6-[[3,4,6-trideoxy-3-[(4-ethoxy-4-oxobutanoyl)methylamino]-β-D-xylo-hexopyranosyl]oxy]oxacyclotetradecane-2,10-dione (as per EP)

Smile: C[C@@]1(OC)C[C@@](O[C@H]([C@@H](C)C(O[C@H](CC)[C@@](C)(O)[C@H](O)[C@H]2C)=O)[C@H](C)[C@@H](O[C@@]3([H])[C@H](O)[C@@H](N(C)C(CCC(OCC)=O)=O)C[C@@H](C)O3)[C@](C)(O)C[C@@H](C)C2=O)([H])O[C@@H](C)[C@@H]1O