| 摘要 |
The present invention relates to new co-crystals of pyrrolidinones which is 2-[4-(2,2-difluorovinyl)-2-oxopyrrolidinyl]butanamide or (2S)-2-(2-oxo-4-propyl -1-pyrrolidinyl)butanamide and a salt selected from a group comprising MgCl, MgSO, MgBr, Mg(PO), MgHPO, Mg(HPO), MgCO, Mg(HCO). |
