Tulathromycin TA-3 Impurity

Chemical Name: Benzyl ((2S,3R,4S,6R)-4-(dimethylamino)-2-(((2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-2-ethyl-3,4,10-trihydroxy-13-(((3S,4S,6R,8R)-8-methoxy-4,8-dimethyl-1,5-dioxaspiro[2.5]octan-6-yl)oxy)-3,5,8,10,12,14-hexamethyl-15-oxo-1-oxa-6-azacyclopentadecan-11-yl)oxy)-6-methyltetrahydro-2H-pyran-3-yl) carbonate

Smile: O[C@H]1[C@@](O)(C)[C@@H](CC)OC([C@H](C)[C@@H](O[C@@H]2O[C@@H](C)[C@@]3(CO3)[C@](C)(OC)C2)[C@H](C)[C@@H](O[C@@H]4O[C@H](C)C[C@H](N(C)C)[C@H]4OC(OCC5=CC=CC=C5)=O)[C@@](O)(C)C[C@@H](C)CN[C@@H]1C)=O