CN Patent

CN114478501A — 一种制备稳定的卡格列净半水合物晶型的方法

Assigned to Hangzhou Zhongmei Huadong Pharmaceutical Co Ltd · Expires 2022-05-13 · 4y expired

What this patent protects

本发明公开了一种稳定的卡格列净半水合物晶型及其制备方法，控制向卡格列净析晶体系中加入水的比例，以及在加入晶种之后快速搅拌，保温静置。该方法既能保证制得的卡格列净半水合物晶型纯度高，晶型又具备良好的形貌，能够不易发生转晶，保持良好的溶出性质。

USPTO Abstract

本发明公开了一种稳定的卡格列净半水合物晶型及其制备方法，控制向卡格列净析晶体系中加入水的比例，以及在加入晶种之后快速搅拌，保温静置。该方法既能保证制得的卡格列净半水合物晶型纯度高，晶型又具备良好的形貌，能够不易发生转晶，保持良好的溶出性质。

Drugs covered by this patent

Patent Metadata

Patent number
CN114478501A
Jurisdiction
CN
Classification
—
Expires
2022-05-13
Drug substance claim
No
Drug product claim
No
Assignee
Hangzhou Zhongmei Huadong 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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