Non-hydrated gabapentine polymorph, production process and utilization for producing pharmaceutical grade gabapentine
The present invention relates to a crystalline polymorph of non-hydrated gabapentin and to the utility thereof as a starting product for the preparation of pharmaceutical grade gabapentin. Likewise, the invention relates to processes for the preparation of the new crystalline polymorph and for the p...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The present invention relates to a crystalline polymorph of non-hydrated gabapentin and to the utility thereof as a starting product for the preparation of pharmaceutical grade gabapentin. Likewise, the invention relates to processes for the preparation of the new crystalline polymorph and for the preparation of pharmaceutical grade gabapentin.
The non-hydrated gabapentin polymorph is prepared by drying an aqueous solution of gabapentin by spray drying or turbo-drying and it is used for the preparation of pharmaceutical grade gabapentin by subjecting the polymorph to crystallisation from solvents. |
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