CN Patent

CN106588898A — 一种卡格列净无定型的制备方法

Assigned to Zhejiang Huahai Pharmaceutical Co Ltd · Expires 2017-04-26 · 9y expired

What this patent protects

本发明提供了一种卡格列净无定型的制备方法，该制备方法包括以下步骤：将卡格列净加入有机溶剂中溶解，然后蒸馏至一定质量的油状物后；向所述油状物中加入反溶剂，搅拌析出固体，降温、过滤、烘干，得卡格列净无定型。该制备方法具备溶剂倍率低、收率高、操作简单、易于回收、三废少、重现性好，得到的产品质量稳定，流动性好，适合用于制剂制备等特点，易于商业化大生产，具有很高的推广和应用价值。

USPTO Abstract

本发明提供了一种卡格列净无定型的制备方法，该制备方法包括以下步骤：将卡格列净加入有机溶剂中溶解，然后蒸馏至一定质量的油状物后；向所述油状物中加入反溶剂，搅拌析出固体，降温、过滤、烘干，得卡格列净无定型。该制备方法具备溶剂倍率低、收率高、操作简单、易于回收、三废少、重现性好，得到的产品质量稳定，流动性好，适合用于制剂制备等特点，易于商业化大生产，具有很高的推广和应用价值。

Drugs covered by this patent

Patent Metadata

Patent number
CN106588898A
Jurisdiction
CN
Classification
—
Expires
2017-04-26
Drug substance claim
No
Drug product claim
No
Assignee
Zhejiang Huahai Pharmaceutical Co Ltd
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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