Pregabalin Impurity 17

Chemical Name: (S)-1-(((2R,3R,4S,5R)-2,3-dihydroxy-5-(hydroxymethyl)-4-(((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)tetrahydrofuran-2-yl)methyl)-4-isobutylpyrrolidin-2-one compound with (S)-4-isobutyl-1-(((2R,3S,4R,5R)-2,3,5-trihydroxy-4-(((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)tetrahydro-2H-pyran-2-yl)methyl)pyrrolidin-2-one (1:1)

Smile: O[C@@H]1[C@H](O)[C@@H](O)[C@H](O[C@@H]2[C@@H](CO)O[C@@](CN3C(C[C@H](CC(C)C)C3)=O)(O)[C@@H]2O)O[C@@H]1CO.O[C@@H]4[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]4O[C@@H]5[C@H](O)CO[C@@](CN6C[C@@H](CC(C)C)CC6=O)(O)[C@H]5O