Pregabalin Impurity 16

Chemical Name: (S)-1-(((2R,3S,4S,5R)-2,3-dihydroxy-5-(hydroxymethyl)-4-(((2R,3R,4S,5R,6S)-3,4,5,6-tetrahydroxytetrahydro-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=C1N(C[C@]2(O)[C@@H](O)[C@H](O[C@H]3[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O3)[C@H](O)CO2)C[C@@H](CC(C)C)C1.O[C@@H]4[C@H](O)[C@@H](O)[C@@](O[C@H]5[C@H](O)[C@@](O)(CN6C(C[C@H](CC(C)C)C6)=O)O[C@@H]5CO)([H])O[C@@H]4CO