Patent ID: 9126929
Filing Date: 2015-09-08
Classification: C07D

Abstract:
1. A (S)-4-hydroxy-2-oxo-1-pyrrolidineacetamide racemate crystal form II, having a diffraction peak at a diffraction angle 2θ selected from the group consisting of 10.669, 13.25, 13.847, 14.198, 16.729, 17.934, 18.746, 18.816, 20.273, 20.413, 21.431, 21.617, 21.663, 23.38, 24.324, 24.415, 26.069, 26.107, 27.901, 28.621, 28.925, 29.449, 29.484, 31.702, 36.516, 37.685, and 39.721 degrees.