Preparation of 9-hydroxy-3-(2-hydroxyethyl)-2-methyl-4
The present invention concerns a process for preparing crystalline 3-(2-chloro-ethyl)-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one substantially free of 2-acetylbutyrolactone.
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| Hauptverfasser: | , , |
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| Format: | Patent |
| Sprache: | eng |
| Online-Zugang: | Volltext bestellen |
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| Zusammenfassung: | The present invention concerns a process for preparing crystalline 3-(2-chloro-ethyl)-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one substantially free of 2-acetylbutyrolactone. |
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