CN Patent

CN109485687A — 奥贝胆酸的晶型j及其制备方法

Assigned to CHENGDU HONGDA PHARMACEUTICAL Co Ltd · Expires 2019-03-19 · 7y expired

What this patent protects

本发明涉及奥贝胆酸的晶型J及其制备方法，以及无定型奥贝胆酸的制备。本发明获得的奥贝胆酸纯度高、水分含量小，在高温、高湿条件下增重均不明显，具有良好的稳定性，适合长期储存和工业化生产；且本发明的奥贝胆酸晶型J可转化为无定型奥贝胆酸，获得的无定型奥贝胆酸收率高，纯度好。

USPTO Abstract

本发明涉及奥贝胆酸的晶型J及其制备方法，以及无定型奥贝胆酸的制备。本发明获得的奥贝胆酸纯度高、水分含量小，在高温、高湿条件下增重均不明显，具有良好的稳定性，适合长期储存和工业化生产；且本发明的奥贝胆酸晶型J可转化为无定型奥贝胆酸，获得的无定型奥贝胆酸收率高，纯度好。

Drugs covered by this patent

Patent Metadata

Patent number
CN109485687A
Jurisdiction
CN
Classification
—
Expires
2019-03-19
Drug substance claim
No
Drug product claim
No
Assignee
CHENGDU HONGDA 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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