Purification method for preparing (R)-8-(3-aminopiperidine-1-group)-xanthine
The invention discloses a purification method for preparing (R)-8-(3-aminopiperidine-1-group)-xanthine. The purification method comprises the following steps of: reacting an obtained 8-(3-aminopiperidine-1-group)-xanthine crude product with proper acid for salification and purification; beating; the...
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| Format: | Patent |
| Sprache: | eng |
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