| 摘要 |
A process is disclosed for preparing and isolating a novel cefadroxil solvate of dimethylacetamide, N-methyl-2-pyrrolidone or monomethylformamide. This solvate is useful for the preparation of a crystalline cefadroxyl hemihydrate which has a K.F. between about 3.5 and 2.0% and is more stable than other cefadroxyl molecules.
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